How to Visualize El Nino Index
Joko Ade Nursiyono | CEO jokoding.com
1/18/2024
How to visualize El Nino Index using R?
This tutorial aims to show how to visualize El Nino Index using R. The El Nino Index that is used here is derived from https://origin.cpc.ncep.noaa.gov/. As we know, the El Nino Index is an important indicator for predicting climate anomalies. There are five steps to perform El Nino Index visualization attractively. # First step: we want to scrape the climate anomaly data named El Nino Index, so we should activate some packages like rvest, xml2, stringr, and dplyr
library(rvest)## Warning: package 'rvest' was built under R version 4.0.5library(xml2)## Warning: package 'xml2' was built under R version 4.0.4library(stringr)## Warning: package 'stringr' was built under R version 4.0.5library(dplyr)## Warning: package 'dplyr' was built under R version 4.0.5##
## Attaching package: 'dplyr'## The following objects are masked from 'package:stats':
##
## filter, lag## The following objects are masked from 'package:base':
##
## intersect, setdiff, setequal, unionIn the second step, we perform web scraping using the NOAA website’s URL to extract El Nino Index
ninoindex <-read.table("https://origin.cpc.ncep.noaa.gov/products/analysis_monitoring/ensostuff/detrend.nino34.ascii.txt", header = T)
# show the result
ninoindex## YR MON TOTAL ClimAdjust ANOM
## 1 1950 1 24.56 26.18 -1.62
## 2 1950 2 25.07 26.39 -1.32
## 3 1950 3 25.88 26.95 -1.07
## 4 1950 4 26.29 27.39 -1.11
## 5 1950 5 26.19 27.56 -1.37
## 6 1950 6 26.47 27.21 -0.74
## 7 1950 7 26.28 26.72 -0.44
## 8 1950 8 25.88 26.30 -0.42
## 9 1950 9 25.73 26.14 -0.41
## 10 1950 10 25.68 26.01 -0.32
## 11 1950 11 25.46 26.06 -0.60
## 12 1950 12 25.29 26.18 -0.88
## 13 1951 1 25.26 26.18 -0.92
## 14 1951 2 25.72 26.39 -0.66
## 15 1951 3 26.91 26.95 -0.04
## 16 1951 4 27.59 27.39 0.20
## 17 1951 5 27.93 27.56 0.37
## 18 1951 6 27.73 27.21 0.52
## 19 1951 7 27.59 26.72 0.87
## 20 1951 8 27.01 26.30 0.71
## 21 1951 9 27.22 26.14 1.08
## 22 1951 10 27.20 26.01 1.19
## 23 1951 11 27.25 26.06 1.19
## 24 1951 12 26.92 26.18 0.74
## 25 1952 1 26.67 26.18 0.49
## 26 1952 2 26.75 26.39 0.37
## 27 1952 3 27.19 26.95 0.24
## 28 1952 4 27.81 27.39 0.42
## 29 1952 5 27.79 27.56 0.23
## 30 1952 6 27.18 27.21 -0.03
## 31 1952 7 26.52 26.72 -0.20
## 32 1952 8 26.30 26.30 0.00
## 33 1952 9 26.35 26.14 0.21
## 34 1952 10 26.25 26.01 0.25
## 35 1952 11 25.92 26.06 -0.14
## 36 1952 12 26.21 26.18 0.03
## 37 1953 1 26.74 26.18 0.56
## 38 1953 2 27.00 26.39 0.61
## 39 1953 3 27.57 26.95 0.62
## 40 1953 4 28.03 27.39 0.64
## 41 1953 5 28.28 27.56 0.71
## 42 1953 6 28.12 27.21 0.90
## 43 1953 7 27.42 26.72 0.70
## 44 1953 8 26.93 26.30 0.63
## 45 1953 9 27.00 26.14 0.85
## 46 1953 10 26.87 26.01 0.86
## 47 1953 11 26.88 26.06 0.82
## 48 1953 12 27.01 26.18 0.83
## 49 1954 1 26.98 26.18 0.80
## 50 1954 2 27.03 26.39 0.64
## 51 1954 3 26.91 26.95 -0.04
## 52 1954 4 26.65 27.39 -0.74
## 53 1954 5 27.11 27.56 -0.45
## 54 1954 6 26.79 27.21 -0.42
## 55 1954 7 26.10 26.72 -0.62
## 56 1954 8 25.42 26.30 -0.88
## 57 1954 9 25.11 26.14 -1.03
## 58 1954 10 25.22 26.01 -0.78
## 59 1954 11 25.56 26.06 -0.50
## 60 1954 12 25.26 26.18 -0.91
## 61 1955 1 25.62 26.18 -0.56
## 62 1955 2 25.82 26.39 -0.57
## 63 1955 3 26.23 26.95 -0.72
## 64 1955 4 26.61 27.39 -0.78
## 65 1955 5 26.65 27.56 -0.91
## 66 1955 6 26.54 27.21 -0.67
## 67 1955 7 26.14 26.72 -0.58
## 68 1955 8 25.50 26.30 -0.80
## 69 1955 9 25.28 26.14 -0.87
## 70 1955 10 24.41 26.01 -1.60
## 71 1955 11 24.25 26.06 -1.81
## 72 1955 12 24.57 26.18 -1.61
## 73 1956 1 25.34 26.33 -0.99
## 74 1956 2 25.77 26.51 -0.74
## 75 1956 3 26.47 27.01 -0.54
## 76 1956 4 26.86 27.46 -0.60
## 77 1956 5 27.13 27.59 -0.46
## 78 1956 6 26.81 27.29 -0.48
## 79 1956 7 26.22 26.80 -0.58
## 80 1956 8 25.67 26.32 -0.65
## 81 1956 9 25.72 26.15 -0.43
## 82 1956 10 25.74 26.03 -0.29
## 83 1956 11 25.56 26.10 -0.54
## 84 1956 12 25.71 26.18 -0.47
## 85 1957 1 26.04 26.33 -0.29
## 86 1957 2 26.54 26.51 0.02
## 87 1957 3 27.46 27.01 0.45
## 88 1957 4 28.23 27.46 0.77
## 89 1957 5 28.54 27.59 0.94
## 90 1957 6 28.35 27.29 1.05
## 91 1957 7 28.15 26.80 1.34
## 92 1957 8 27.68 26.32 1.36
## 93 1957 9 27.42 26.15 1.27
## 94 1957 10 27.41 26.03 1.37
## 95 1957 11 27.62 26.10 1.52
## 96 1957 12 27.89 26.18 1.71
## 97 1958 1 28.32 26.33 1.98
## 98 1958 2 28.24 26.51 1.72
## 99 1958 3 28.27 27.01 1.26
## 100 1958 4 28.28 27.46 0.81
## 101 1958 5 28.30 27.59 0.71
## 102 1958 6 27.98 27.29 0.69
## 103 1958 7 27.31 26.80 0.51
## 104 1958 8 26.84 26.32 0.52
## 105 1958 9 26.40 26.15 0.25
## 106 1958 10 26.45 26.03 0.41
## 107 1958 11 26.75 26.10 0.65
## 108 1958 12 26.61 26.18 0.44
## 109 1959 1 27.07 26.33 0.74
## 110 1959 2 27.18 26.51 0.67
## 111 1959 3 27.47 27.01 0.46
## 112 1959 4 27.88 27.46 0.42
## 113 1959 5 27.69 27.59 0.10
## 114 1959 6 27.36 27.29 0.07
## 115 1959 7 26.43 26.80 -0.37
## 116 1959 8 26.09 26.32 -0.24
## 117 1959 9 25.92 26.15 -0.23
## 118 1959 10 26.24 26.03 0.20
## 119 1959 11 26.04 26.10 -0.06
## 120 1959 12 26.18 26.18 0.00
## 121 1960 1 26.26 26.33 -0.07
## 122 1960 2 26.29 26.51 -0.22
## 123 1960 3 26.99 27.01 -0.02
## 124 1960 4 27.49 27.46 0.03
## 125 1960 5 27.68 27.59 0.08
## 126 1960 6 27.23 27.29 -0.06
## 127 1960 7 26.87 26.80 0.07
## 128 1960 8 26.69 26.32 0.36
## 129 1960 9 26.43 26.15 0.28
## 130 1960 10 26.21 26.03 0.18
## 131 1960 11 26.25 26.10 0.15
## 132 1960 12 26.22 26.18 0.04
## 133 1961 1 26.23 26.27 -0.04
## 134 1961 2 26.56 26.45 0.10
## 135 1961 3 26.94 26.92 0.02
## 136 1961 4 27.37 27.37 0.00
## 137 1961 5 27.75 27.49 0.26
## 138 1961 6 27.66 27.22 0.44
## 139 1961 7 26.87 26.76 0.11
## 140 1961 8 26.18 26.30 -0.12
## 141 1961 9 25.78 26.16 -0.38
## 142 1961 10 25.70 26.09 -0.38
## 143 1961 11 26.07 26.08 -0.01
## 144 1961 12 25.98 26.14 -0.16
## 145 1962 1 25.96 26.27 -0.30
## 146 1962 2 26.20 26.45 -0.26
## 147 1962 3 26.81 26.92 -0.11
## 148 1962 4 27.13 27.37 -0.24
## 149 1962 5 27.05 27.49 -0.44
## 150 1962 6 27.08 27.22 -0.14
## 151 1962 7 26.75 26.76 0.00
## 152 1962 8 26.32 26.30 0.02
## 153 1962 9 25.93 26.16 -0.23
## 154 1962 10 25.96 26.09 -0.12
## 155 1962 11 25.75 26.08 -0.32
## 156 1962 12 25.67 26.14 -0.47
## 157 1963 1 25.77 26.27 -0.50
## 158 1963 2 26.23 26.45 -0.23
## 159 1963 3 27.18 26.92 0.26
## 160 1963 4 27.79 27.37 0.41
## 161 1963 5 27.63 27.49 0.14
## 162 1963 6 27.61 27.22 0.39
## 163 1963 7 27.77 26.76 1.02
## 164 1963 8 27.47 26.30 1.17
## 165 1963 9 27.39 26.16 1.23
## 166 1963 10 27.35 26.09 1.26
## 167 1963 11 27.46 26.08 1.39
## 168 1963 12 27.61 26.14 1.47
## 169 1964 1 27.33 26.27 1.06
## 170 1964 2 27.13 26.45 0.68
## 171 1964 3 27.02 26.92 0.10
## 172 1964 4 26.95 27.37 -0.42
## 173 1964 5 26.82 27.49 -0.67
## 174 1964 6 26.58 27.22 -0.64
## 175 1964 7 26.33 26.76 -0.43
## 176 1964 8 25.59 26.30 -0.72
## 177 1964 9 25.32 26.16 -0.84
## 178 1964 10 25.36 26.09 -0.73
## 179 1964 11 25.26 26.08 -0.82
## 180 1964 12 25.22 26.14 -0.92
## 181 1965 1 25.66 26.27 -0.61
## 182 1965 2 26.20 26.45 -0.25
## 183 1965 3 26.95 26.92 0.03
## 184 1965 4 27.38 27.37 0.01
## 185 1965 5 27.99 27.49 0.50
## 186 1965 6 28.08 27.22 0.86
## 187 1965 7 27.89 26.76 1.14
## 188 1965 8 27.96 26.30 1.66
## 189 1965 9 28.00 26.16 1.84
## 190 1965 10 28.15 26.09 2.06
## 191 1965 11 28.11 26.08 2.03
## 192 1965 12 27.95 26.14 1.81
## 193 1966 1 27.66 26.36 1.31
## 194 1966 2 27.55 26.56 1.00
## 195 1966 3 28.21 27.02 1.19
## 196 1966 4 28.16 27.40 0.76
## 197 1966 5 27.55 27.53 0.02
## 198 1966 6 27.63 27.35 0.29
## 199 1966 7 27.32 26.90 0.42
## 200 1966 8 26.48 26.46 0.02
## 201 1966 9 26.27 26.34 -0.07
## 202 1966 10 26.22 26.33 -0.11
## 203 1966 11 26.23 26.35 -0.12
## 204 1966 12 26.02 26.33 -0.31
## 205 1967 1 25.88 26.36 -0.48
## 206 1967 2 26.12 26.56 -0.44
## 207 1967 3 26.51 27.02 -0.51
## 208 1967 4 26.75 27.40 -0.66
## 209 1967 5 27.35 27.53 -0.18
## 210 1967 6 27.46 27.35 0.12
## 211 1967 7 26.96 26.90 0.06
## 212 1967 8 26.43 26.46 -0.03
## 213 1967 9 25.85 26.34 -0.49
## 214 1967 10 25.96 26.33 -0.36
## 215 1967 11 26.07 26.35 -0.28
## 216 1967 12 25.95 26.33 -0.38
## 217 1968 1 25.69 26.36 -0.66
## 218 1968 2 25.69 26.56 -0.86
## 219 1968 3 26.34 27.02 -0.68
## 220 1968 4 27.10 27.40 -0.30
## 221 1968 5 27.19 27.53 -0.34
## 222 1968 6 27.87 27.35 0.52
## 223 1968 7 27.57 26.90 0.66
## 224 1968 8 27.00 26.46 0.54
## 225 1968 9 26.72 26.34 0.38
## 226 1968 10 26.75 26.33 0.42
## 227 1968 11 27.20 26.35 0.85
## 228 1968 12 27.27 26.33 0.94
## 229 1969 1 27.50 26.36 1.14
## 230 1969 2 27.86 26.56 1.31
## 231 1969 3 27.83 27.02 0.81
## 232 1969 4 28.14 27.40 0.73
## 233 1969 5 28.29 27.53 0.76
## 234 1969 6 27.69 27.35 0.35
## 235 1969 7 27.08 26.90 0.18
## 236 1969 8 27.02 26.46 0.56
## 237 1969 9 27.15 26.34 0.81
## 238 1969 10 27.34 26.33 1.01
## 239 1969 11 27.11 26.35 0.76
## 240 1969 12 26.98 26.33 0.66
## 241 1970 1 26.84 26.36 0.48
## 242 1970 2 26.96 26.56 0.41
## 243 1970 3 27.15 27.02 0.13
## 244 1970 4 27.75 27.40 0.34
## 245 1970 5 27.63 27.53 0.10
## 246 1970 6 27.03 27.35 -0.31
## 247 1970 7 26.21 26.90 -0.70
## 248 1970 8 25.59 26.46 -0.87
## 249 1970 9 25.64 26.34 -0.70
## 250 1970 10 25.59 26.33 -0.73
## 251 1970 11 25.57 26.35 -0.78
## 252 1970 12 25.27 26.33 -1.06
## 253 1971 1 24.82 26.42 -1.60
## 254 1971 2 25.20 26.61 -1.42
## 255 1971 3 25.93 27.06 -1.13
## 256 1971 4 26.64 27.44 -0.80
## 257 1971 5 26.95 27.56 -0.61
## 258 1971 6 26.60 27.38 -0.78
## 259 1971 7 26.12 26.94 -0.82
## 260 1971 8 25.74 26.54 -0.79
## 261 1971 9 25.71 26.42 -0.71
## 262 1971 10 25.47 26.43 -0.96
## 263 1971 11 25.55 26.43 -0.88
## 264 1971 12 25.37 26.40 -1.03
## 265 1972 1 25.63 26.42 -0.78
## 266 1972 2 26.31 26.61 -0.30
## 267 1972 3 27.09 27.06 0.03
## 268 1972 4 27.90 27.44 0.45
## 269 1972 5 28.31 27.56 0.75
## 270 1972 6 28.18 27.38 0.80
## 271 1972 7 28.14 26.94 1.20
## 272 1972 8 27.94 26.54 1.40
## 273 1972 9 27.94 26.42 1.52
## 274 1972 10 28.25 26.43 1.83
## 275 1972 11 28.60 26.43 2.17
## 276 1972 12 28.68 26.40 2.28
## 277 1973 1 28.33 26.42 1.92
## 278 1973 2 27.95 26.61 1.34
## 279 1973 3 27.56 27.06 0.49
## 280 1973 4 27.25 27.44 -0.19
## 281 1973 5 26.97 27.56 -0.59
## 282 1973 6 26.55 27.38 -0.83
## 283 1973 7 25.76 26.94 -1.18
## 284 1973 8 25.23 26.54 -1.31
## 285 1973 9 25.06 26.42 -1.36
## 286 1973 10 24.74 26.43 -1.69
## 287 1973 11 24.34 26.43 -2.09
## 288 1973 12 24.34 26.40 -2.06
## 289 1974 1 24.47 26.42 -1.95
## 290 1974 2 25.11 26.61 -1.50
## 291 1974 3 25.86 27.06 -1.21
## 292 1974 4 26.48 27.44 -0.97
## 293 1974 5 26.65 27.56 -0.91
## 294 1974 6 26.53 27.38 -0.85
## 295 1974 7 26.39 26.94 -0.55
## 296 1974 8 26.33 26.54 -0.21
## 297 1974 9 26.07 26.42 -0.35
## 298 1974 10 25.77 26.43 -0.66
## 299 1974 11 25.61 26.43 -0.82
## 300 1974 12 25.63 26.40 -0.78
## 301 1975 1 26.10 26.42 -0.32
## 302 1975 2 26.08 26.61 -0.53
## 303 1975 3 26.21 27.06 -0.86
## 304 1975 4 26.87 27.44 -0.58
## 305 1975 5 26.80 27.56 -0.76
## 306 1975 6 26.23 27.38 -1.15
## 307 1975 7 25.90 26.94 -1.04
## 308 1975 8 25.34 26.54 -1.20
## 309 1975 9 25.05 26.42 -1.37
## 310 1975 10 24.89 26.43 -1.54
## 311 1975 11 25.05 26.43 -1.38
## 312 1975 12 24.67 26.40 -1.73
## 313 1976 1 24.54 26.39 -1.84
## 314 1976 2 25.49 26.59 -1.09
## 315 1976 3 26.46 27.04 -0.58
## 316 1976 4 26.89 27.42 -0.53
## 317 1976 5 27.20 27.51 -0.31
## 318 1976 6 27.35 27.35 0.00
## 319 1976 7 27.12 26.95 0.17
## 320 1976 8 26.98 26.59 0.38
## 321 1976 9 27.02 26.51 0.50
## 322 1976 10 27.46 26.48 0.98
## 323 1976 11 27.41 26.46 0.95
## 324 1976 12 27.08 26.43 0.66
## 325 1977 1 27.32 26.39 0.93
## 326 1977 2 27.13 26.59 0.55
## 327 1977 3 27.48 27.04 0.44
## 328 1977 4 27.45 27.42 0.03
## 329 1977 5 27.72 27.51 0.22
## 330 1977 6 27.74 27.35 0.39
## 331 1977 7 27.38 26.95 0.42
## 332 1977 8 26.84 26.59 0.25
## 333 1977 9 27.11 26.51 0.60
## 334 1977 10 27.34 26.48 0.86
## 335 1977 11 27.18 26.46 0.72
## 336 1977 12 27.29 26.43 0.86
## 337 1978 1 27.17 26.39 0.78
## 338 1978 2 27.01 26.59 0.42
## 339 1978 3 27.10 27.04 0.06
## 340 1978 4 27.12 27.42 -0.30
## 341 1978 5 27.20 27.51 -0.31
## 342 1978 6 27.02 27.35 -0.33
## 343 1978 7 26.74 26.95 -0.22
## 344 1978 8 26.07 26.59 -0.53
## 345 1978 9 26.01 26.51 -0.50
## 346 1978 10 26.25 26.48 -0.23
## 347 1978 11 26.32 26.46 -0.14
## 348 1978 12 26.54 26.43 0.11
## 349 1979 1 26.42 26.39 0.03
## 350 1979 2 26.54 26.59 -0.04
## 351 1979 3 27.28 27.04 0.23
## 352 1979 4 27.84 27.42 0.42
## 353 1979 5 27.69 27.51 0.19
## 354 1979 6 27.43 27.35 0.08
## 355 1979 7 26.82 26.95 -0.13
## 356 1979 8 26.75 26.59 0.16
## 357 1979 9 26.99 26.51 0.48
## 358 1979 10 26.83 26.48 0.35
## 359 1979 11 26.99 26.46 0.53
## 360 1979 12 27.11 26.43 0.69
## 361 1980 1 27.09 26.39 0.70
## 362 1980 2 26.98 26.59 0.39
## 363 1980 3 27.32 27.04 0.28
## 364 1980 4 27.76 27.42 0.34
## 365 1980 5 28.02 27.51 0.51
## 366 1980 6 27.94 27.35 0.59
## 367 1980 7 27.23 26.95 0.28
## 368 1980 8 26.48 26.59 -0.11
## 369 1980 9 26.44 26.51 -0.07
## 370 1980 10 26.46 26.48 -0.02
## 371 1980 11 26.60 26.46 0.14
## 372 1980 12 26.65 26.43 0.22
## 373 1981 1 26.19 26.57 -0.38
## 374 1981 2 26.12 26.75 -0.62
## 375 1981 3 26.66 27.17 -0.51
## 376 1981 4 27.30 27.59 -0.29
## 377 1981 5 27.36 27.66 -0.30
## 378 1981 6 27.27 27.46 -0.19
## 379 1981 7 26.65 27.02 -0.37
## 380 1981 8 26.32 26.64 -0.32
## 381 1981 9 26.52 26.56 -0.04
## 382 1981 10 26.42 26.53 -0.11
## 383 1981 11 26.29 26.52 -0.23
## 384 1981 12 26.40 26.51 -0.11
## 385 1982 1 26.68 26.57 0.11
## 386 1982 2 26.60 26.75 -0.15
## 387 1982 3 27.42 27.17 0.25
## 388 1982 4 28.03 27.59 0.45
## 389 1982 5 28.39 27.66 0.72
## 390 1982 6 28.26 27.46 0.80
## 391 1982 7 27.66 27.02 0.64
## 392 1982 8 27.58 26.64 0.93
## 393 1982 9 28.20 26.56 1.64
## 394 1982 10 28.69 26.53 2.16
## 395 1982 11 28.61 26.52 2.09
## 396 1982 12 28.79 26.51 2.28
## 397 1983 1 28.88 26.57 2.32
## 398 1983 2 28.69 26.75 1.94
## 399 1983 3 28.67 27.17 1.49
## 400 1983 4 28.77 27.59 1.19
## 401 1983 5 28.84 27.66 1.18
## 402 1983 6 28.28 27.46 0.82
## 403 1983 7 27.19 27.02 0.17
## 404 1983 8 26.60 26.64 -0.04
## 405 1983 9 26.20 26.56 -0.36
## 406 1983 10 25.57 26.53 -0.96
## 407 1983 11 25.42 26.52 -1.10
## 408 1983 12 25.58 26.51 -0.94
## 409 1984 1 25.88 26.57 -0.69
## 410 1984 2 26.57 26.75 -0.18
## 411 1984 3 26.78 27.17 -0.39
## 412 1984 4 27.15 27.59 -0.44
## 413 1984 5 27.20 27.66 -0.46
## 414 1984 6 26.83 27.46 -0.63
## 415 1984 7 26.78 27.02 -0.24
## 416 1984 8 26.60 26.64 -0.04
## 417 1984 9 26.38 26.56 -0.19
## 418 1984 10 26.04 26.53 -0.49
## 419 1984 11 25.52 26.52 -1.00
## 420 1984 12 25.26 26.51 -1.25
## 421 1985 1 25.39 26.57 -1.17
## 422 1985 2 26.04 26.75 -0.71
## 423 1985 3 26.50 27.17 -0.67
## 424 1985 4 26.65 27.59 -0.93
## 425 1985 5 26.91 27.66 -0.75
## 426 1985 6 26.81 27.46 -0.65
## 427 1985 7 26.55 27.02 -0.47
## 428 1985 8 26.29 26.64 -0.35
## 429 1985 9 26.02 26.56 -0.55
## 430 1985 10 26.23 26.53 -0.30
## 431 1985 11 26.33 26.52 -0.20
## 432 1985 12 26.19 26.51 -0.32
## 433 1986 1 25.89 26.46 -0.56
## 434 1986 2 26.06 26.66 -0.60
## 435 1986 3 26.88 27.14 -0.26
## 436 1986 4 27.49 27.58 -0.08
## 437 1986 5 27.41 27.68 -0.27
## 438 1986 6 27.42 27.43 -0.01
## 439 1986 7 27.18 27.01 0.17
## 440 1986 8 27.17 26.66 0.51
## 441 1986 9 27.24 26.59 0.65
## 442 1986 10 27.51 26.54 0.98
## 443 1986 11 27.70 26.50 1.20
## 444 1986 12 27.71 26.47 1.24
## 445 1987 1 27.68 26.46 1.22
## 446 1987 2 27.89 26.66 1.23
## 447 1987 3 28.27 27.14 1.13
## 448 1987 4 28.40 27.58 0.82
## 449 1987 5 28.56 27.68 0.88
## 450 1987 6 28.64 27.43 1.21
## 451 1987 7 28.58 27.01 1.57
## 452 1987 8 28.41 26.66 1.76
## 453 1987 9 28.36 26.59 1.77
## 454 1987 10 27.95 26.54 1.42
## 455 1987 11 27.77 26.50 1.27
## 456 1987 12 27.54 26.47 1.07
## 457 1988 1 27.45 26.46 0.99
## 458 1988 2 27.04 26.66 0.37
## 459 1988 3 27.39 27.14 0.25
## 460 1988 4 27.38 27.58 -0.19
## 461 1988 5 26.68 27.68 -1.00
## 462 1988 6 25.99 27.43 -1.44
## 463 1988 7 25.56 27.01 -1.45
## 464 1988 8 25.67 26.66 -0.99
## 465 1988 9 25.72 26.59 -0.87
## 466 1988 10 24.82 26.54 -1.71
## 467 1988 11 24.66 26.50 -1.85
## 468 1988 12 24.64 26.47 -1.83
## 469 1989 1 24.59 26.46 -1.87
## 470 1989 2 25.29 26.66 -1.37
## 471 1989 3 26.09 27.14 -1.05
## 472 1989 4 26.75 27.58 -0.82
## 473 1989 5 27.07 27.68 -0.61
## 474 1989 6 27.14 27.43 -0.29
## 475 1989 7 26.71 27.01 -0.30
## 476 1989 8 26.32 26.66 -0.33
## 477 1989 9 26.41 26.59 -0.18
## 478 1989 10 26.32 26.54 -0.22
## 479 1989 11 26.25 26.50 -0.25
## 480 1989 12 26.46 26.47 -0.01
## 481 1990 1 26.56 26.46 0.11
## 482 1990 2 26.98 26.66 0.31
## 483 1990 3 27.34 27.14 0.20
## 484 1990 4 27.90 27.58 0.33
## 485 1990 5 28.02 27.68 0.34
## 486 1990 6 27.65 27.43 0.21
## 487 1990 7 27.38 27.01 0.37
## 488 1990 8 27.07 26.66 0.42
## 489 1990 9 26.94 26.59 0.35
## 490 1990 10 26.93 26.54 0.40
## 491 1990 11 26.81 26.50 0.31
## 492 1990 12 26.96 26.47 0.48
## 493 1991 1 27.04 26.59 0.45
## 494 1991 2 27.08 26.79 0.29
## 495 1991 3 27.33 27.28 0.05
## 496 1991 4 28.02 27.70 0.32
## 497 1991 5 28.20 27.80 0.40
## 498 1991 6 28.25 27.60 0.65
## 499 1991 7 28.05 27.19 0.86
## 500 1991 8 27.53 26.84 0.69
## 501 1991 9 27.14 26.78 0.36
## 502 1991 10 27.58 26.76 0.82
## 503 1991 11 27.89 26.70 1.19
## 504 1991 12 28.28 26.66 1.62
## 505 1992 1 28.37 26.59 1.78
## 506 1992 2 28.53 26.79 1.74
## 507 1992 3 28.66 27.28 1.38
## 508 1992 4 29.02 27.70 1.32
## 509 1992 5 28.97 27.80 1.16
## 510 1992 6 28.30 27.60 0.70
## 511 1992 7 27.51 27.19 0.33
## 512 1992 8 26.91 26.84 0.07
## 513 1992 9 26.66 26.78 -0.13
## 514 1992 10 26.42 26.76 -0.34
## 515 1992 11 26.42 26.70 -0.28
## 516 1992 12 26.45 26.66 -0.21
## 517 1993 1 26.70 26.59 0.10
## 518 1993 2 27.17 26.79 0.38
## 519 1993 3 27.68 27.28 0.40
## 520 1993 4 28.41 27.70 0.71
## 521 1993 5 28.71 27.80 0.91
## 522 1993 6 28.08 27.60 0.48
## 523 1993 7 27.52 27.19 0.33
## 524 1993 8 26.99 26.84 0.15
## 525 1993 9 27.07 26.78 0.29
## 526 1993 10 26.78 26.76 0.02
## 527 1993 11 26.71 26.70 0.01
## 528 1993 12 26.76 26.66 0.10
## 529 1994 1 26.65 26.59 0.06
## 530 1994 2 26.82 26.79 0.03
## 531 1994 3 27.39 27.28 0.11
## 532 1994 4 28.08 27.70 0.38
## 533 1994 5 28.24 27.80 0.43
## 534 1994 6 28.04 27.60 0.44
## 535 1994 7 27.54 27.19 0.35
## 536 1994 8 27.38 26.84 0.54
## 537 1994 9 27.19 26.78 0.41
## 538 1994 10 27.47 26.76 0.71
## 539 1994 11 27.81 26.70 1.11
## 540 1994 12 27.85 26.66 1.19
## 541 1995 1 27.57 26.59 0.98
## 542 1995 2 27.49 26.79 0.71
## 543 1995 3 27.76 27.28 0.48
## 544 1995 4 28.11 27.70 0.41
## 545 1995 5 27.83 27.80 0.02
## 546 1995 6 27.59 27.60 -0.01
## 547 1995 7 27.08 27.19 -0.11
## 548 1995 8 26.23 26.84 -0.61
## 549 1995 9 25.88 26.78 -0.90
## 550 1995 10 25.84 26.76 -0.92
## 551 1995 11 25.61 26.70 -1.10
## 552 1995 12 25.66 26.66 -1.00
## 553 1996 1 25.70 26.56 -0.86
## 554 1996 2 25.91 26.75 -0.85
## 555 1996 3 26.69 27.24 -0.56
## 556 1996 4 27.36 27.72 -0.36
## 557 1996 5 27.55 27.81 -0.26
## 558 1996 6 27.29 27.59 -0.30
## 559 1996 7 26.85 27.18 -0.32
## 560 1996 8 26.64 26.83 -0.20
## 561 1996 9 26.27 26.73 -0.45
## 562 1996 10 26.27 26.67 -0.40
## 563 1996 11 26.29 26.63 -0.34
## 564 1996 12 25.96 26.56 -0.61
## 565 1997 1 26.02 26.56 -0.54
## 566 1997 2 26.39 26.75 -0.36
## 567 1997 3 27.05 27.24 -0.20
## 568 1997 4 27.99 27.72 0.27
## 569 1997 5 28.58 27.81 0.76
## 570 1997 6 28.81 27.59 1.22
## 571 1997 7 28.85 27.18 1.67
## 572 1997 8 28.74 26.83 1.91
## 573 1997 9 28.84 26.73 2.12
## 574 1997 10 29.07 26.67 2.40
## 575 1997 11 29.11 26.63 2.48
## 576 1997 12 28.89 26.56 2.32
## 577 1998 1 28.93 26.56 2.37
## 578 1998 2 28.79 26.75 2.03
## 579 1998 3 28.63 27.24 1.38
## 580 1998 4 28.61 27.72 0.90
## 581 1998 5 28.52 27.81 0.70
## 582 1998 6 27.35 27.59 -0.24
## 583 1998 7 26.32 27.18 -0.86
## 584 1998 8 25.59 26.83 -1.25
## 585 1998 9 25.47 26.73 -1.26
## 586 1998 10 25.26 26.67 -1.41
## 587 1998 11 25.25 26.63 -1.38
## 588 1998 12 24.92 26.56 -1.64
## 589 1999 1 24.87 26.56 -1.69
## 590 1999 2 25.44 26.75 -1.31
## 591 1999 3 26.34 27.24 -0.90
## 592 1999 4 26.71 27.72 -1.00
## 593 1999 5 26.79 27.81 -1.02
## 594 1999 6 26.54 27.59 -1.05
## 595 1999 7 26.13 27.18 -1.05
## 596 1999 8 25.64 26.83 -1.19
## 597 1999 9 25.63 26.73 -1.09
## 598 1999 10 25.48 26.67 -1.19
## 599 1999 11 25.13 26.63 -1.50
## 600 1999 12 24.87 26.56 -1.70
## 601 2000 1 24.79 26.56 -1.77
## 602 2000 2 25.23 26.75 -1.53
## 603 2000 3 26.31 27.24 -0.93
## 604 2000 4 26.96 27.72 -0.75
## 605 2000 5 27.08 27.81 -0.74
## 606 2000 6 26.95 27.59 -0.64
## 607 2000 7 26.63 27.18 -0.55
## 608 2000 8 26.37 26.83 -0.47
## 609 2000 9 26.20 26.73 -0.52
## 610 2000 10 26.02 26.67 -0.65
## 611 2000 11 25.92 26.63 -0.71
## 612 2000 12 25.69 26.56 -0.88
## 613 2001 1 25.82 26.45 -0.63
## 614 2001 2 26.14 26.66 -0.53
## 615 2001 3 26.82 27.21 -0.39
## 616 2001 4 27.34 27.73 -0.39
## 617 2001 5 27.60 27.85 -0.24
## 618 2001 6 27.54 27.65 -0.11
## 619 2001 7 27.25 27.26 -0.01
## 620 2001 8 26.80 26.91 -0.10
## 621 2001 9 26.52 26.80 -0.28
## 622 2001 10 26.57 26.75 -0.18
## 623 2001 11 26.34 26.75 -0.41
## 624 2001 12 26.20 26.65 -0.46
## 625 2002 1 26.40 26.45 -0.05
## 626 2002 2 26.72 26.66 0.06
## 627 2002 3 27.30 27.21 0.09
## 628 2002 4 27.85 27.73 0.12
## 629 2002 5 28.24 27.85 0.40
## 630 2002 6 28.44 27.65 0.79
## 631 2002 7 28.03 27.26 0.77
## 632 2002 8 27.72 26.91 0.81
## 633 2002 9 27.81 26.80 1.01
## 634 2002 10 27.96 26.75 1.20
## 635 2002 11 28.16 26.75 1.41
## 636 2002 12 27.97 26.65 1.31
## 637 2003 1 27.16 26.45 0.70
## 638 2003 2 27.40 26.66 0.74
## 639 2003 3 27.66 27.21 0.45
## 640 2003 4 27.69 27.73 -0.05
## 641 2003 5 27.32 27.85 -0.52
## 642 2003 6 27.44 27.65 -0.21
## 643 2003 7 27.50 27.26 0.24
## 644 2003 8 27.11 26.91 0.20
## 645 2003 9 26.98 26.80 0.19
## 646 2003 10 27.14 26.75 0.38
## 647 2003 11 27.04 26.75 0.29
## 648 2003 12 27.04 26.65 0.38
## 649 2004 1 26.83 26.45 0.38
## 650 2004 2 27.00 26.66 0.34
## 651 2004 3 27.41 27.21 0.21
## 652 2004 4 27.89 27.73 0.16
## 653 2004 5 27.99 27.85 0.14
## 654 2004 6 27.85 27.65 0.20
## 655 2004 7 27.77 27.26 0.51
## 656 2004 8 27.60 26.91 0.70
## 657 2004 9 27.52 26.80 0.72
## 658 2004 10 27.44 26.75 0.68
## 659 2004 11 27.36 26.75 0.61
## 660 2004 12 27.34 26.65 0.69
## 661 2005 1 27.21 26.45 0.76
## 662 2005 2 27.12 26.66 0.46
## 663 2005 3 27.74 27.21 0.53
## 664 2005 4 28.09 27.73 0.35
## 665 2005 5 28.24 27.85 0.39
## 666 2005 6 27.77 27.65 0.12
## 667 2005 7 27.07 27.26 -0.19
## 668 2005 8 26.80 26.91 -0.10
## 669 2005 9 26.68 26.80 -0.11
## 670 2005 10 26.65 26.75 -0.10
## 671 2005 11 26.11 26.75 -0.64
## 672 2005 12 25.68 26.65 -0.97
## 673 2006 1 25.64 26.55 -0.91
## 674 2006 2 26.09 26.76 -0.67
## 675 2006 3 26.58 27.29 -0.71
## 676 2006 4 27.51 27.83 -0.32
## 677 2006 5 27.85 27.94 -0.09
## 678 2006 6 27.73 27.73 0.00
## 679 2006 7 27.30 27.29 0.01
## 680 2006 8 27.16 26.86 0.31
## 681 2006 9 27.32 26.72 0.60
## 682 2006 10 27.42 26.72 0.70
## 683 2006 11 27.70 26.70 0.99
## 684 2006 12 27.74 26.60 1.14
## 685 2007 1 27.25 26.55 0.70
## 686 2007 2 26.90 26.76 0.13
## 687 2007 3 27.12 27.29 -0.18
## 688 2007 4 27.51 27.83 -0.31
## 689 2007 5 27.46 27.94 -0.47
## 690 2007 6 27.37 27.73 -0.36
## 691 2007 7 26.70 27.29 -0.59
## 692 2007 8 26.13 26.86 -0.72
## 693 2007 9 25.61 26.72 -1.11
## 694 2007 10 25.33 26.72 -1.39
## 695 2007 11 25.17 26.70 -1.53
## 696 2007 12 25.02 26.60 -1.58
## 697 2008 1 24.87 26.55 -1.68
## 698 2008 2 25.10 26.76 -1.66
## 699 2008 3 26.09 27.29 -1.21
## 700 2008 4 26.84 27.83 -0.99
## 701 2008 5 27.09 27.94 -0.84
## 702 2008 6 27.04 27.73 -0.68
## 703 2008 7 26.99 27.29 -0.30
## 704 2008 8 26.72 26.86 -0.13
## 705 2008 9 26.47 26.72 -0.25
## 706 2008 10 26.37 26.72 -0.35
## 707 2008 11 26.25 26.70 -0.46
## 708 2008 12 25.74 26.60 -0.86
## 709 2009 1 25.67 26.55 -0.89
## 710 2009 2 25.97 26.76 -0.79
## 711 2009 3 26.60 27.29 -0.70
## 712 2009 4 27.48 27.83 -0.35
## 713 2009 5 27.99 27.94 0.06
## 714 2009 6 28.04 27.73 0.31
## 715 2009 7 27.77 27.29 0.48
## 716 2009 8 27.42 26.86 0.56
## 717 2009 9 27.40 26.72 0.68
## 718 2009 10 27.61 26.72 0.89
## 719 2009 11 28.15 26.70 1.45
## 720 2009 12 28.33 26.60 1.73
## 721 2010 1 28.06 26.55 1.51
## 722 2010 2 28.01 26.76 1.25
## 723 2010 3 28.19 27.29 0.90
## 724 2010 4 28.21 27.83 0.38
## 725 2010 5 27.72 27.94 -0.22
## 726 2010 6 27.04 27.73 -0.69
## 727 2010 7 26.22 27.29 -1.07
## 728 2010 8 25.47 26.86 -1.38
## 729 2010 9 25.12 26.72 -1.59
## 730 2010 10 25.03 26.72 -1.69
## 731 2010 11 25.06 26.70 -1.64
## 732 2010 12 25.00 26.60 -1.60
## 733 2011 1 25.01 26.55 -1.54
## 734 2011 2 25.66 26.76 -1.11
## 735 2011 3 26.38 27.29 -0.92
## 736 2011 4 27.07 27.83 -0.76
## 737 2011 5 27.41 27.94 -0.52
## 738 2011 6 27.35 27.73 -0.38
## 739 2011 7 26.87 27.29 -0.42
## 740 2011 8 26.21 26.86 -0.64
## 741 2011 9 25.92 26.72 -0.80
## 742 2011 10 25.67 26.72 -1.05
## 743 2011 11 25.52 26.70 -1.18
## 744 2011 12 25.55 26.60 -1.05
## 745 2012 1 25.68 26.55 -0.87
## 746 2012 2 26.10 26.76 -0.67
## 747 2012 3 26.69 27.29 -0.61
## 748 2012 4 27.33 27.83 -0.49
## 749 2012 5 27.62 27.94 -0.32
## 750 2012 6 27.75 27.73 0.02
## 751 2012 7 27.54 27.29 0.25
## 752 2012 8 27.32 26.86 0.47
## 753 2012 9 27.10 26.72 0.38
## 754 2012 10 26.98 26.72 0.26
## 755 2012 11 26.86 26.70 0.15
## 756 2012 12 26.35 26.60 -0.25
## 757 2013 1 26.02 26.55 -0.53
## 758 2013 2 26.25 26.76 -0.51
## 759 2013 3 27.04 27.29 -0.25
## 760 2013 4 27.58 27.83 -0.25
## 761 2013 5 27.53 27.94 -0.40
## 762 2013 6 27.30 27.73 -0.43
## 763 2013 7 26.90 27.29 -0.39
## 764 2013 8 26.47 26.86 -0.38
## 765 2013 9 26.53 26.72 -0.18
## 766 2013 10 26.52 26.72 -0.20
## 767 2013 11 26.56 26.70 -0.14
## 768 2013 12 26.43 26.60 -0.17
## 769 2014 1 26.06 26.55 -0.49
## 770 2014 2 26.15 26.76 -0.61
## 771 2014 3 27.02 27.29 -0.28
## 772 2014 4 27.91 27.83 0.09
## 773 2014 5 28.26 27.94 0.32
## 774 2014 6 27.96 27.73 0.23
## 775 2014 7 27.23 27.29 -0.06
## 776 2014 8 26.83 26.86 -0.03
## 777 2014 9 27.01 26.72 0.29
## 778 2014 10 27.16 26.72 0.44
## 779 2014 11 27.46 26.70 0.75
## 780 2014 12 27.32 26.60 0.72
## 781 2015 1 27.06 26.55 0.51
## 782 2015 2 27.18 26.76 0.42
## 783 2015 3 27.77 27.29 0.47
## 784 2015 4 28.53 27.83 0.70
## 785 2015 5 28.85 27.94 0.92
## 786 2015 6 28.90 27.73 1.17
## 787 2015 7 28.75 27.29 1.45
## 788 2015 8 28.78 26.86 1.93
## 789 2015 9 28.92 26.72 2.20
## 790 2015 10 29.07 26.72 2.36
## 791 2015 11 29.41 26.70 2.71
## 792 2015 12 29.26 26.60 2.65
## 793 2016 1 29.11 26.55 2.56
## 794 2016 2 29.00 26.76 2.24
## 795 2016 3 28.90 27.29 1.61
## 796 2016 4 28.73 27.83 0.90
## 797 2016 5 28.24 27.94 0.30
## 798 2016 6 27.70 27.73 -0.03
## 799 2016 7 26.82 27.29 -0.47
## 800 2016 8 26.28 26.86 -0.57
## 801 2016 9 26.15 26.72 -0.57
## 802 2016 10 25.98 26.72 -0.74
## 803 2016 11 25.95 26.70 -0.76
## 804 2016 12 26.10 26.60 -0.50
## 805 2017 1 26.12 26.55 -0.43
## 806 2017 2 26.68 26.76 -0.08
## 807 2017 3 27.33 27.29 0.03
## 808 2017 4 28.04 27.83 0.21
## 809 2017 5 28.30 27.94 0.36
## 810 2017 6 28.06 27.73 0.33
## 811 2017 7 27.54 27.29 0.25
## 812 2017 8 26.70 26.86 -0.16
## 813 2017 9 26.29 26.72 -0.43
## 814 2017 10 26.15 26.72 -0.56
## 815 2017 11 25.74 26.70 -0.96
## 816 2017 12 25.62 26.60 -0.99
## 817 2018 1 25.57 26.55 -0.98
## 818 2018 2 25.98 26.76 -0.78
## 819 2018 3 26.50 27.29 -0.80
## 820 2018 4 27.32 27.83 -0.51
## 821 2018 5 27.74 27.94 -0.20
## 822 2018 6 27.77 27.73 0.05
## 823 2018 7 27.42 27.29 0.12
## 824 2018 8 26.95 26.86 0.09
## 825 2018 9 27.19 26.72 0.47
## 826 2018 10 27.62 26.72 0.90
## 827 2018 11 27.61 26.70 0.90
## 828 2018 12 27.49 26.60 0.89
## 829 2019 1 27.20 26.55 0.65
## 830 2019 2 27.48 26.76 0.71
## 831 2019 3 28.10 27.29 0.80
## 832 2019 4 28.45 27.83 0.62
## 833 2019 5 28.49 27.94 0.55
## 834 2019 6 28.18 27.73 0.45
## 835 2019 7 27.64 27.29 0.35
## 836 2019 8 26.90 26.86 0.04
## 837 2019 9 26.75 26.72 0.04
## 838 2019 10 27.20 26.72 0.48
## 839 2019 11 27.23 26.70 0.52
## 840 2019 12 27.12 26.60 0.52
## 841 2020 1 27.16 26.55 0.60
## 842 2020 2 27.13 26.76 0.37
## 843 2020 3 27.77 27.29 0.48
## 844 2020 4 28.19 27.83 0.36
## 845 2020 5 27.66 27.94 -0.27
## 846 2020 6 27.39 27.73 -0.34
## 847 2020 7 26.99 27.29 -0.30
## 848 2020 8 26.27 26.86 -0.59
## 849 2020 9 25.89 26.72 -0.83
## 850 2020 10 25.46 26.72 -1.25
## 851 2020 11 25.28 26.70 -1.42
## 852 2020 12 25.45 26.60 -1.15
## 853 2021 1 25.56 26.55 -0.99
## 854 2021 2 25.76 26.76 -1.00
## 855 2021 3 26.50 27.29 -0.80
## 856 2021 4 27.11 27.83 -0.72
## 857 2021 5 27.48 27.94 -0.46
## 858 2021 6 27.45 27.73 -0.28
## 859 2021 7 26.90 27.29 -0.39
## 860 2021 8 26.32 26.86 -0.53
## 861 2021 9 26.16 26.72 -0.55
## 862 2021 10 25.78 26.72 -0.94
## 863 2021 11 25.76 26.70 -0.94
## 864 2021 12 25.54 26.60 -1.06
## 865 2022 1 25.61 26.55 -0.95
## 866 2022 2 25.88 26.76 -0.89
## 867 2022 3 26.33 27.29 -0.97
## 868 2022 4 26.72 27.83 -1.11
## 869 2022 5 26.83 27.94 -1.11
## 870 2022 6 26.98 27.73 -0.75
## 871 2022 7 26.60 27.29 -0.70
## 872 2022 8 25.88 26.86 -0.97
## 873 2022 9 25.65 26.72 -1.07
## 874 2022 10 25.73 26.72 -0.99
## 875 2022 11 25.80 26.70 -0.90
## 876 2022 12 25.75 26.60 -0.86
## 877 2023 1 25.83 26.55 -0.72
## 878 2023 2 26.30 26.76 -0.46
## 879 2023 3 27.18 27.29 -0.11
## 880 2023 4 27.96 27.83 0.13
## 881 2023 5 28.39 27.94 0.46
## 882 2023 6 28.56 27.73 0.84
## 883 2023 7 28.31 27.29 1.02
## 884 2023 8 28.20 26.86 1.35
## 885 2023 9 28.32 26.72 1.60
## 886 2023 10 28.44 26.72 1.72
## 887 2023 11 28.72 26.70 2.02
## 888 2023 12 28.67 26.60 2.07Third step, we add a new variable named PERIOD, which is a merged variable combining the Year and Month columns
ninoindex$PERIOD <- as.Date(paste0(ninoindex$YR, "-", sprintf("%02d", ninoindex$MON), "-01"),
format = "%Y-%m-%d")
# show the result
ninoindex## YR MON TOTAL ClimAdjust ANOM PERIOD
## 1 1950 1 24.56 26.18 -1.62 1950-01-01
## 2 1950 2 25.07 26.39 -1.32 1950-02-01
## 3 1950 3 25.88 26.95 -1.07 1950-03-01
## 4 1950 4 26.29 27.39 -1.11 1950-04-01
## 5 1950 5 26.19 27.56 -1.37 1950-05-01
## 6 1950 6 26.47 27.21 -0.74 1950-06-01
## 7 1950 7 26.28 26.72 -0.44 1950-07-01
## 8 1950 8 25.88 26.30 -0.42 1950-08-01
## 9 1950 9 25.73 26.14 -0.41 1950-09-01
## 10 1950 10 25.68 26.01 -0.32 1950-10-01
## 11 1950 11 25.46 26.06 -0.60 1950-11-01
## 12 1950 12 25.29 26.18 -0.88 1950-12-01
## 13 1951 1 25.26 26.18 -0.92 1951-01-01
## 14 1951 2 25.72 26.39 -0.66 1951-02-01
## 15 1951 3 26.91 26.95 -0.04 1951-03-01
## 16 1951 4 27.59 27.39 0.20 1951-04-01
## 17 1951 5 27.93 27.56 0.37 1951-05-01
## 18 1951 6 27.73 27.21 0.52 1951-06-01
## 19 1951 7 27.59 26.72 0.87 1951-07-01
## 20 1951 8 27.01 26.30 0.71 1951-08-01
## 21 1951 9 27.22 26.14 1.08 1951-09-01
## 22 1951 10 27.20 26.01 1.19 1951-10-01
## 23 1951 11 27.25 26.06 1.19 1951-11-01
## 24 1951 12 26.92 26.18 0.74 1951-12-01
## 25 1952 1 26.67 26.18 0.49 1952-01-01
## 26 1952 2 26.75 26.39 0.37 1952-02-01
## 27 1952 3 27.19 26.95 0.24 1952-03-01
## 28 1952 4 27.81 27.39 0.42 1952-04-01
## 29 1952 5 27.79 27.56 0.23 1952-05-01
## 30 1952 6 27.18 27.21 -0.03 1952-06-01
## 31 1952 7 26.52 26.72 -0.20 1952-07-01
## 32 1952 8 26.30 26.30 0.00 1952-08-01
## 33 1952 9 26.35 26.14 0.21 1952-09-01
## 34 1952 10 26.25 26.01 0.25 1952-10-01
## 35 1952 11 25.92 26.06 -0.14 1952-11-01
## 36 1952 12 26.21 26.18 0.03 1952-12-01
## 37 1953 1 26.74 26.18 0.56 1953-01-01
## 38 1953 2 27.00 26.39 0.61 1953-02-01
## 39 1953 3 27.57 26.95 0.62 1953-03-01
## 40 1953 4 28.03 27.39 0.64 1953-04-01
## 41 1953 5 28.28 27.56 0.71 1953-05-01
## 42 1953 6 28.12 27.21 0.90 1953-06-01
## 43 1953 7 27.42 26.72 0.70 1953-07-01
## 44 1953 8 26.93 26.30 0.63 1953-08-01
## 45 1953 9 27.00 26.14 0.85 1953-09-01
## 46 1953 10 26.87 26.01 0.86 1953-10-01
## 47 1953 11 26.88 26.06 0.82 1953-11-01
## 48 1953 12 27.01 26.18 0.83 1953-12-01
## 49 1954 1 26.98 26.18 0.80 1954-01-01
## 50 1954 2 27.03 26.39 0.64 1954-02-01
## 51 1954 3 26.91 26.95 -0.04 1954-03-01
## 52 1954 4 26.65 27.39 -0.74 1954-04-01
## 53 1954 5 27.11 27.56 -0.45 1954-05-01
## 54 1954 6 26.79 27.21 -0.42 1954-06-01
## 55 1954 7 26.10 26.72 -0.62 1954-07-01
## 56 1954 8 25.42 26.30 -0.88 1954-08-01
## 57 1954 9 25.11 26.14 -1.03 1954-09-01
## 58 1954 10 25.22 26.01 -0.78 1954-10-01
## 59 1954 11 25.56 26.06 -0.50 1954-11-01
## 60 1954 12 25.26 26.18 -0.91 1954-12-01
## 61 1955 1 25.62 26.18 -0.56 1955-01-01
## 62 1955 2 25.82 26.39 -0.57 1955-02-01
## 63 1955 3 26.23 26.95 -0.72 1955-03-01
## 64 1955 4 26.61 27.39 -0.78 1955-04-01
## 65 1955 5 26.65 27.56 -0.91 1955-05-01
## 66 1955 6 26.54 27.21 -0.67 1955-06-01
## 67 1955 7 26.14 26.72 -0.58 1955-07-01
## 68 1955 8 25.50 26.30 -0.80 1955-08-01
## 69 1955 9 25.28 26.14 -0.87 1955-09-01
## 70 1955 10 24.41 26.01 -1.60 1955-10-01
## 71 1955 11 24.25 26.06 -1.81 1955-11-01
## 72 1955 12 24.57 26.18 -1.61 1955-12-01
## 73 1956 1 25.34 26.33 -0.99 1956-01-01
## 74 1956 2 25.77 26.51 -0.74 1956-02-01
## 75 1956 3 26.47 27.01 -0.54 1956-03-01
## 76 1956 4 26.86 27.46 -0.60 1956-04-01
## 77 1956 5 27.13 27.59 -0.46 1956-05-01
## 78 1956 6 26.81 27.29 -0.48 1956-06-01
## 79 1956 7 26.22 26.80 -0.58 1956-07-01
## 80 1956 8 25.67 26.32 -0.65 1956-08-01
## 81 1956 9 25.72 26.15 -0.43 1956-09-01
## 82 1956 10 25.74 26.03 -0.29 1956-10-01
## 83 1956 11 25.56 26.10 -0.54 1956-11-01
## 84 1956 12 25.71 26.18 -0.47 1956-12-01
## 85 1957 1 26.04 26.33 -0.29 1957-01-01
## 86 1957 2 26.54 26.51 0.02 1957-02-01
## 87 1957 3 27.46 27.01 0.45 1957-03-01
## 88 1957 4 28.23 27.46 0.77 1957-04-01
## 89 1957 5 28.54 27.59 0.94 1957-05-01
## 90 1957 6 28.35 27.29 1.05 1957-06-01
## 91 1957 7 28.15 26.80 1.34 1957-07-01
## 92 1957 8 27.68 26.32 1.36 1957-08-01
## 93 1957 9 27.42 26.15 1.27 1957-09-01
## 94 1957 10 27.41 26.03 1.37 1957-10-01
## 95 1957 11 27.62 26.10 1.52 1957-11-01
## 96 1957 12 27.89 26.18 1.71 1957-12-01
## 97 1958 1 28.32 26.33 1.98 1958-01-01
## 98 1958 2 28.24 26.51 1.72 1958-02-01
## 99 1958 3 28.27 27.01 1.26 1958-03-01
## 100 1958 4 28.28 27.46 0.81 1958-04-01
## 101 1958 5 28.30 27.59 0.71 1958-05-01
## 102 1958 6 27.98 27.29 0.69 1958-06-01
## 103 1958 7 27.31 26.80 0.51 1958-07-01
## 104 1958 8 26.84 26.32 0.52 1958-08-01
## 105 1958 9 26.40 26.15 0.25 1958-09-01
## 106 1958 10 26.45 26.03 0.41 1958-10-01
## 107 1958 11 26.75 26.10 0.65 1958-11-01
## 108 1958 12 26.61 26.18 0.44 1958-12-01
## 109 1959 1 27.07 26.33 0.74 1959-01-01
## 110 1959 2 27.18 26.51 0.67 1959-02-01
## 111 1959 3 27.47 27.01 0.46 1959-03-01
## 112 1959 4 27.88 27.46 0.42 1959-04-01
## 113 1959 5 27.69 27.59 0.10 1959-05-01
## 114 1959 6 27.36 27.29 0.07 1959-06-01
## 115 1959 7 26.43 26.80 -0.37 1959-07-01
## 116 1959 8 26.09 26.32 -0.24 1959-08-01
## 117 1959 9 25.92 26.15 -0.23 1959-09-01
## 118 1959 10 26.24 26.03 0.20 1959-10-01
## 119 1959 11 26.04 26.10 -0.06 1959-11-01
## 120 1959 12 26.18 26.18 0.00 1959-12-01
## 121 1960 1 26.26 26.33 -0.07 1960-01-01
## 122 1960 2 26.29 26.51 -0.22 1960-02-01
## 123 1960 3 26.99 27.01 -0.02 1960-03-01
## 124 1960 4 27.49 27.46 0.03 1960-04-01
## 125 1960 5 27.68 27.59 0.08 1960-05-01
## 126 1960 6 27.23 27.29 -0.06 1960-06-01
## 127 1960 7 26.87 26.80 0.07 1960-07-01
## 128 1960 8 26.69 26.32 0.36 1960-08-01
## 129 1960 9 26.43 26.15 0.28 1960-09-01
## 130 1960 10 26.21 26.03 0.18 1960-10-01
## 131 1960 11 26.25 26.10 0.15 1960-11-01
## 132 1960 12 26.22 26.18 0.04 1960-12-01
## 133 1961 1 26.23 26.27 -0.04 1961-01-01
## 134 1961 2 26.56 26.45 0.10 1961-02-01
## 135 1961 3 26.94 26.92 0.02 1961-03-01
## 136 1961 4 27.37 27.37 0.00 1961-04-01
## 137 1961 5 27.75 27.49 0.26 1961-05-01
## 138 1961 6 27.66 27.22 0.44 1961-06-01
## 139 1961 7 26.87 26.76 0.11 1961-07-01
## 140 1961 8 26.18 26.30 -0.12 1961-08-01
## 141 1961 9 25.78 26.16 -0.38 1961-09-01
## 142 1961 10 25.70 26.09 -0.38 1961-10-01
## 143 1961 11 26.07 26.08 -0.01 1961-11-01
## 144 1961 12 25.98 26.14 -0.16 1961-12-01
## 145 1962 1 25.96 26.27 -0.30 1962-01-01
## 146 1962 2 26.20 26.45 -0.26 1962-02-01
## 147 1962 3 26.81 26.92 -0.11 1962-03-01
## 148 1962 4 27.13 27.37 -0.24 1962-04-01
## 149 1962 5 27.05 27.49 -0.44 1962-05-01
## 150 1962 6 27.08 27.22 -0.14 1962-06-01
## 151 1962 7 26.75 26.76 0.00 1962-07-01
## 152 1962 8 26.32 26.30 0.02 1962-08-01
## 153 1962 9 25.93 26.16 -0.23 1962-09-01
## 154 1962 10 25.96 26.09 -0.12 1962-10-01
## 155 1962 11 25.75 26.08 -0.32 1962-11-01
## 156 1962 12 25.67 26.14 -0.47 1962-12-01
## 157 1963 1 25.77 26.27 -0.50 1963-01-01
## 158 1963 2 26.23 26.45 -0.23 1963-02-01
## 159 1963 3 27.18 26.92 0.26 1963-03-01
## 160 1963 4 27.79 27.37 0.41 1963-04-01
## 161 1963 5 27.63 27.49 0.14 1963-05-01
## 162 1963 6 27.61 27.22 0.39 1963-06-01
## 163 1963 7 27.77 26.76 1.02 1963-07-01
## 164 1963 8 27.47 26.30 1.17 1963-08-01
## 165 1963 9 27.39 26.16 1.23 1963-09-01
## 166 1963 10 27.35 26.09 1.26 1963-10-01
## 167 1963 11 27.46 26.08 1.39 1963-11-01
## 168 1963 12 27.61 26.14 1.47 1963-12-01
## 169 1964 1 27.33 26.27 1.06 1964-01-01
## 170 1964 2 27.13 26.45 0.68 1964-02-01
## 171 1964 3 27.02 26.92 0.10 1964-03-01
## 172 1964 4 26.95 27.37 -0.42 1964-04-01
## 173 1964 5 26.82 27.49 -0.67 1964-05-01
## 174 1964 6 26.58 27.22 -0.64 1964-06-01
## 175 1964 7 26.33 26.76 -0.43 1964-07-01
## 176 1964 8 25.59 26.30 -0.72 1964-08-01
## 177 1964 9 25.32 26.16 -0.84 1964-09-01
## 178 1964 10 25.36 26.09 -0.73 1964-10-01
## 179 1964 11 25.26 26.08 -0.82 1964-11-01
## 180 1964 12 25.22 26.14 -0.92 1964-12-01
## 181 1965 1 25.66 26.27 -0.61 1965-01-01
## 182 1965 2 26.20 26.45 -0.25 1965-02-01
## 183 1965 3 26.95 26.92 0.03 1965-03-01
## 184 1965 4 27.38 27.37 0.01 1965-04-01
## 185 1965 5 27.99 27.49 0.50 1965-05-01
## 186 1965 6 28.08 27.22 0.86 1965-06-01
## 187 1965 7 27.89 26.76 1.14 1965-07-01
## 188 1965 8 27.96 26.30 1.66 1965-08-01
## 189 1965 9 28.00 26.16 1.84 1965-09-01
## 190 1965 10 28.15 26.09 2.06 1965-10-01
## 191 1965 11 28.11 26.08 2.03 1965-11-01
## 192 1965 12 27.95 26.14 1.81 1965-12-01
## 193 1966 1 27.66 26.36 1.31 1966-01-01
## 194 1966 2 27.55 26.56 1.00 1966-02-01
## 195 1966 3 28.21 27.02 1.19 1966-03-01
## 196 1966 4 28.16 27.40 0.76 1966-04-01
## 197 1966 5 27.55 27.53 0.02 1966-05-01
## 198 1966 6 27.63 27.35 0.29 1966-06-01
## 199 1966 7 27.32 26.90 0.42 1966-07-01
## 200 1966 8 26.48 26.46 0.02 1966-08-01
## 201 1966 9 26.27 26.34 -0.07 1966-09-01
## 202 1966 10 26.22 26.33 -0.11 1966-10-01
## 203 1966 11 26.23 26.35 -0.12 1966-11-01
## 204 1966 12 26.02 26.33 -0.31 1966-12-01
## 205 1967 1 25.88 26.36 -0.48 1967-01-01
## 206 1967 2 26.12 26.56 -0.44 1967-02-01
## 207 1967 3 26.51 27.02 -0.51 1967-03-01
## 208 1967 4 26.75 27.40 -0.66 1967-04-01
## 209 1967 5 27.35 27.53 -0.18 1967-05-01
## 210 1967 6 27.46 27.35 0.12 1967-06-01
## 211 1967 7 26.96 26.90 0.06 1967-07-01
## 212 1967 8 26.43 26.46 -0.03 1967-08-01
## 213 1967 9 25.85 26.34 -0.49 1967-09-01
## 214 1967 10 25.96 26.33 -0.36 1967-10-01
## 215 1967 11 26.07 26.35 -0.28 1967-11-01
## 216 1967 12 25.95 26.33 -0.38 1967-12-01
## 217 1968 1 25.69 26.36 -0.66 1968-01-01
## 218 1968 2 25.69 26.56 -0.86 1968-02-01
## 219 1968 3 26.34 27.02 -0.68 1968-03-01
## 220 1968 4 27.10 27.40 -0.30 1968-04-01
## 221 1968 5 27.19 27.53 -0.34 1968-05-01
## 222 1968 6 27.87 27.35 0.52 1968-06-01
## 223 1968 7 27.57 26.90 0.66 1968-07-01
## 224 1968 8 27.00 26.46 0.54 1968-08-01
## 225 1968 9 26.72 26.34 0.38 1968-09-01
## 226 1968 10 26.75 26.33 0.42 1968-10-01
## 227 1968 11 27.20 26.35 0.85 1968-11-01
## 228 1968 12 27.27 26.33 0.94 1968-12-01
## 229 1969 1 27.50 26.36 1.14 1969-01-01
## 230 1969 2 27.86 26.56 1.31 1969-02-01
## 231 1969 3 27.83 27.02 0.81 1969-03-01
## 232 1969 4 28.14 27.40 0.73 1969-04-01
## 233 1969 5 28.29 27.53 0.76 1969-05-01
## 234 1969 6 27.69 27.35 0.35 1969-06-01
## 235 1969 7 27.08 26.90 0.18 1969-07-01
## 236 1969 8 27.02 26.46 0.56 1969-08-01
## 237 1969 9 27.15 26.34 0.81 1969-09-01
## 238 1969 10 27.34 26.33 1.01 1969-10-01
## 239 1969 11 27.11 26.35 0.76 1969-11-01
## 240 1969 12 26.98 26.33 0.66 1969-12-01
## 241 1970 1 26.84 26.36 0.48 1970-01-01
## 242 1970 2 26.96 26.56 0.41 1970-02-01
## 243 1970 3 27.15 27.02 0.13 1970-03-01
## 244 1970 4 27.75 27.40 0.34 1970-04-01
## 245 1970 5 27.63 27.53 0.10 1970-05-01
## 246 1970 6 27.03 27.35 -0.31 1970-06-01
## 247 1970 7 26.21 26.90 -0.70 1970-07-01
## 248 1970 8 25.59 26.46 -0.87 1970-08-01
## 249 1970 9 25.64 26.34 -0.70 1970-09-01
## 250 1970 10 25.59 26.33 -0.73 1970-10-01
## 251 1970 11 25.57 26.35 -0.78 1970-11-01
## 252 1970 12 25.27 26.33 -1.06 1970-12-01
## 253 1971 1 24.82 26.42 -1.60 1971-01-01
## 254 1971 2 25.20 26.61 -1.42 1971-02-01
## 255 1971 3 25.93 27.06 -1.13 1971-03-01
## 256 1971 4 26.64 27.44 -0.80 1971-04-01
## 257 1971 5 26.95 27.56 -0.61 1971-05-01
## 258 1971 6 26.60 27.38 -0.78 1971-06-01
## 259 1971 7 26.12 26.94 -0.82 1971-07-01
## 260 1971 8 25.74 26.54 -0.79 1971-08-01
## 261 1971 9 25.71 26.42 -0.71 1971-09-01
## 262 1971 10 25.47 26.43 -0.96 1971-10-01
## 263 1971 11 25.55 26.43 -0.88 1971-11-01
## 264 1971 12 25.37 26.40 -1.03 1971-12-01
## 265 1972 1 25.63 26.42 -0.78 1972-01-01
## 266 1972 2 26.31 26.61 -0.30 1972-02-01
## 267 1972 3 27.09 27.06 0.03 1972-03-01
## 268 1972 4 27.90 27.44 0.45 1972-04-01
## 269 1972 5 28.31 27.56 0.75 1972-05-01
## 270 1972 6 28.18 27.38 0.80 1972-06-01
## 271 1972 7 28.14 26.94 1.20 1972-07-01
## 272 1972 8 27.94 26.54 1.40 1972-08-01
## 273 1972 9 27.94 26.42 1.52 1972-09-01
## 274 1972 10 28.25 26.43 1.83 1972-10-01
## 275 1972 11 28.60 26.43 2.17 1972-11-01
## 276 1972 12 28.68 26.40 2.28 1972-12-01
## 277 1973 1 28.33 26.42 1.92 1973-01-01
## 278 1973 2 27.95 26.61 1.34 1973-02-01
## 279 1973 3 27.56 27.06 0.49 1973-03-01
## 280 1973 4 27.25 27.44 -0.19 1973-04-01
## 281 1973 5 26.97 27.56 -0.59 1973-05-01
## 282 1973 6 26.55 27.38 -0.83 1973-06-01
## 283 1973 7 25.76 26.94 -1.18 1973-07-01
## 284 1973 8 25.23 26.54 -1.31 1973-08-01
## 285 1973 9 25.06 26.42 -1.36 1973-09-01
## 286 1973 10 24.74 26.43 -1.69 1973-10-01
## 287 1973 11 24.34 26.43 -2.09 1973-11-01
## 288 1973 12 24.34 26.40 -2.06 1973-12-01
## 289 1974 1 24.47 26.42 -1.95 1974-01-01
## 290 1974 2 25.11 26.61 -1.50 1974-02-01
## 291 1974 3 25.86 27.06 -1.21 1974-03-01
## 292 1974 4 26.48 27.44 -0.97 1974-04-01
## 293 1974 5 26.65 27.56 -0.91 1974-05-01
## 294 1974 6 26.53 27.38 -0.85 1974-06-01
## 295 1974 7 26.39 26.94 -0.55 1974-07-01
## 296 1974 8 26.33 26.54 -0.21 1974-08-01
## 297 1974 9 26.07 26.42 -0.35 1974-09-01
## 298 1974 10 25.77 26.43 -0.66 1974-10-01
## 299 1974 11 25.61 26.43 -0.82 1974-11-01
## 300 1974 12 25.63 26.40 -0.78 1974-12-01
## 301 1975 1 26.10 26.42 -0.32 1975-01-01
## 302 1975 2 26.08 26.61 -0.53 1975-02-01
## 303 1975 3 26.21 27.06 -0.86 1975-03-01
## 304 1975 4 26.87 27.44 -0.58 1975-04-01
## 305 1975 5 26.80 27.56 -0.76 1975-05-01
## 306 1975 6 26.23 27.38 -1.15 1975-06-01
## 307 1975 7 25.90 26.94 -1.04 1975-07-01
## 308 1975 8 25.34 26.54 -1.20 1975-08-01
## 309 1975 9 25.05 26.42 -1.37 1975-09-01
## 310 1975 10 24.89 26.43 -1.54 1975-10-01
## 311 1975 11 25.05 26.43 -1.38 1975-11-01
## 312 1975 12 24.67 26.40 -1.73 1975-12-01
## 313 1976 1 24.54 26.39 -1.84 1976-01-01
## 314 1976 2 25.49 26.59 -1.09 1976-02-01
## 315 1976 3 26.46 27.04 -0.58 1976-03-01
## 316 1976 4 26.89 27.42 -0.53 1976-04-01
## 317 1976 5 27.20 27.51 -0.31 1976-05-01
## 318 1976 6 27.35 27.35 0.00 1976-06-01
## 319 1976 7 27.12 26.95 0.17 1976-07-01
## 320 1976 8 26.98 26.59 0.38 1976-08-01
## 321 1976 9 27.02 26.51 0.50 1976-09-01
## 322 1976 10 27.46 26.48 0.98 1976-10-01
## 323 1976 11 27.41 26.46 0.95 1976-11-01
## 324 1976 12 27.08 26.43 0.66 1976-12-01
## 325 1977 1 27.32 26.39 0.93 1977-01-01
## 326 1977 2 27.13 26.59 0.55 1977-02-01
## 327 1977 3 27.48 27.04 0.44 1977-03-01
## 328 1977 4 27.45 27.42 0.03 1977-04-01
## 329 1977 5 27.72 27.51 0.22 1977-05-01
## 330 1977 6 27.74 27.35 0.39 1977-06-01
## 331 1977 7 27.38 26.95 0.42 1977-07-01
## 332 1977 8 26.84 26.59 0.25 1977-08-01
## 333 1977 9 27.11 26.51 0.60 1977-09-01
## 334 1977 10 27.34 26.48 0.86 1977-10-01
## 335 1977 11 27.18 26.46 0.72 1977-11-01
## 336 1977 12 27.29 26.43 0.86 1977-12-01
## 337 1978 1 27.17 26.39 0.78 1978-01-01
## 338 1978 2 27.01 26.59 0.42 1978-02-01
## 339 1978 3 27.10 27.04 0.06 1978-03-01
## 340 1978 4 27.12 27.42 -0.30 1978-04-01
## 341 1978 5 27.20 27.51 -0.31 1978-05-01
## 342 1978 6 27.02 27.35 -0.33 1978-06-01
## 343 1978 7 26.74 26.95 -0.22 1978-07-01
## 344 1978 8 26.07 26.59 -0.53 1978-08-01
## 345 1978 9 26.01 26.51 -0.50 1978-09-01
## 346 1978 10 26.25 26.48 -0.23 1978-10-01
## 347 1978 11 26.32 26.46 -0.14 1978-11-01
## 348 1978 12 26.54 26.43 0.11 1978-12-01
## 349 1979 1 26.42 26.39 0.03 1979-01-01
## 350 1979 2 26.54 26.59 -0.04 1979-02-01
## 351 1979 3 27.28 27.04 0.23 1979-03-01
## 352 1979 4 27.84 27.42 0.42 1979-04-01
## 353 1979 5 27.69 27.51 0.19 1979-05-01
## 354 1979 6 27.43 27.35 0.08 1979-06-01
## 355 1979 7 26.82 26.95 -0.13 1979-07-01
## 356 1979 8 26.75 26.59 0.16 1979-08-01
## 357 1979 9 26.99 26.51 0.48 1979-09-01
## 358 1979 10 26.83 26.48 0.35 1979-10-01
## 359 1979 11 26.99 26.46 0.53 1979-11-01
## 360 1979 12 27.11 26.43 0.69 1979-12-01
## 361 1980 1 27.09 26.39 0.70 1980-01-01
## 362 1980 2 26.98 26.59 0.39 1980-02-01
## 363 1980 3 27.32 27.04 0.28 1980-03-01
## 364 1980 4 27.76 27.42 0.34 1980-04-01
## 365 1980 5 28.02 27.51 0.51 1980-05-01
## 366 1980 6 27.94 27.35 0.59 1980-06-01
## 367 1980 7 27.23 26.95 0.28 1980-07-01
## 368 1980 8 26.48 26.59 -0.11 1980-08-01
## 369 1980 9 26.44 26.51 -0.07 1980-09-01
## 370 1980 10 26.46 26.48 -0.02 1980-10-01
## 371 1980 11 26.60 26.46 0.14 1980-11-01
## 372 1980 12 26.65 26.43 0.22 1980-12-01
## 373 1981 1 26.19 26.57 -0.38 1981-01-01
## 374 1981 2 26.12 26.75 -0.62 1981-02-01
## 375 1981 3 26.66 27.17 -0.51 1981-03-01
## 376 1981 4 27.30 27.59 -0.29 1981-04-01
## 377 1981 5 27.36 27.66 -0.30 1981-05-01
## 378 1981 6 27.27 27.46 -0.19 1981-06-01
## 379 1981 7 26.65 27.02 -0.37 1981-07-01
## 380 1981 8 26.32 26.64 -0.32 1981-08-01
## 381 1981 9 26.52 26.56 -0.04 1981-09-01
## 382 1981 10 26.42 26.53 -0.11 1981-10-01
## 383 1981 11 26.29 26.52 -0.23 1981-11-01
## 384 1981 12 26.40 26.51 -0.11 1981-12-01
## 385 1982 1 26.68 26.57 0.11 1982-01-01
## 386 1982 2 26.60 26.75 -0.15 1982-02-01
## 387 1982 3 27.42 27.17 0.25 1982-03-01
## 388 1982 4 28.03 27.59 0.45 1982-04-01
## 389 1982 5 28.39 27.66 0.72 1982-05-01
## 390 1982 6 28.26 27.46 0.80 1982-06-01
## 391 1982 7 27.66 27.02 0.64 1982-07-01
## 392 1982 8 27.58 26.64 0.93 1982-08-01
## 393 1982 9 28.20 26.56 1.64 1982-09-01
## 394 1982 10 28.69 26.53 2.16 1982-10-01
## 395 1982 11 28.61 26.52 2.09 1982-11-01
## 396 1982 12 28.79 26.51 2.28 1982-12-01
## 397 1983 1 28.88 26.57 2.32 1983-01-01
## 398 1983 2 28.69 26.75 1.94 1983-02-01
## 399 1983 3 28.67 27.17 1.49 1983-03-01
## 400 1983 4 28.77 27.59 1.19 1983-04-01
## 401 1983 5 28.84 27.66 1.18 1983-05-01
## 402 1983 6 28.28 27.46 0.82 1983-06-01
## 403 1983 7 27.19 27.02 0.17 1983-07-01
## 404 1983 8 26.60 26.64 -0.04 1983-08-01
## 405 1983 9 26.20 26.56 -0.36 1983-09-01
## 406 1983 10 25.57 26.53 -0.96 1983-10-01
## 407 1983 11 25.42 26.52 -1.10 1983-11-01
## 408 1983 12 25.58 26.51 -0.94 1983-12-01
## 409 1984 1 25.88 26.57 -0.69 1984-01-01
## 410 1984 2 26.57 26.75 -0.18 1984-02-01
## 411 1984 3 26.78 27.17 -0.39 1984-03-01
## 412 1984 4 27.15 27.59 -0.44 1984-04-01
## 413 1984 5 27.20 27.66 -0.46 1984-05-01
## 414 1984 6 26.83 27.46 -0.63 1984-06-01
## 415 1984 7 26.78 27.02 -0.24 1984-07-01
## 416 1984 8 26.60 26.64 -0.04 1984-08-01
## 417 1984 9 26.38 26.56 -0.19 1984-09-01
## 418 1984 10 26.04 26.53 -0.49 1984-10-01
## 419 1984 11 25.52 26.52 -1.00 1984-11-01
## 420 1984 12 25.26 26.51 -1.25 1984-12-01
## 421 1985 1 25.39 26.57 -1.17 1985-01-01
## 422 1985 2 26.04 26.75 -0.71 1985-02-01
## 423 1985 3 26.50 27.17 -0.67 1985-03-01
## 424 1985 4 26.65 27.59 -0.93 1985-04-01
## 425 1985 5 26.91 27.66 -0.75 1985-05-01
## 426 1985 6 26.81 27.46 -0.65 1985-06-01
## 427 1985 7 26.55 27.02 -0.47 1985-07-01
## 428 1985 8 26.29 26.64 -0.35 1985-08-01
## 429 1985 9 26.02 26.56 -0.55 1985-09-01
## 430 1985 10 26.23 26.53 -0.30 1985-10-01
## 431 1985 11 26.33 26.52 -0.20 1985-11-01
## 432 1985 12 26.19 26.51 -0.32 1985-12-01
## 433 1986 1 25.89 26.46 -0.56 1986-01-01
## 434 1986 2 26.06 26.66 -0.60 1986-02-01
## 435 1986 3 26.88 27.14 -0.26 1986-03-01
## 436 1986 4 27.49 27.58 -0.08 1986-04-01
## 437 1986 5 27.41 27.68 -0.27 1986-05-01
## 438 1986 6 27.42 27.43 -0.01 1986-06-01
## 439 1986 7 27.18 27.01 0.17 1986-07-01
## 440 1986 8 27.17 26.66 0.51 1986-08-01
## 441 1986 9 27.24 26.59 0.65 1986-09-01
## 442 1986 10 27.51 26.54 0.98 1986-10-01
## 443 1986 11 27.70 26.50 1.20 1986-11-01
## 444 1986 12 27.71 26.47 1.24 1986-12-01
## 445 1987 1 27.68 26.46 1.22 1987-01-01
## 446 1987 2 27.89 26.66 1.23 1987-02-01
## 447 1987 3 28.27 27.14 1.13 1987-03-01
## 448 1987 4 28.40 27.58 0.82 1987-04-01
## 449 1987 5 28.56 27.68 0.88 1987-05-01
## 450 1987 6 28.64 27.43 1.21 1987-06-01
## 451 1987 7 28.58 27.01 1.57 1987-07-01
## 452 1987 8 28.41 26.66 1.76 1987-08-01
## 453 1987 9 28.36 26.59 1.77 1987-09-01
## 454 1987 10 27.95 26.54 1.42 1987-10-01
## 455 1987 11 27.77 26.50 1.27 1987-11-01
## 456 1987 12 27.54 26.47 1.07 1987-12-01
## 457 1988 1 27.45 26.46 0.99 1988-01-01
## 458 1988 2 27.04 26.66 0.37 1988-02-01
## 459 1988 3 27.39 27.14 0.25 1988-03-01
## 460 1988 4 27.38 27.58 -0.19 1988-04-01
## 461 1988 5 26.68 27.68 -1.00 1988-05-01
## 462 1988 6 25.99 27.43 -1.44 1988-06-01
## 463 1988 7 25.56 27.01 -1.45 1988-07-01
## 464 1988 8 25.67 26.66 -0.99 1988-08-01
## 465 1988 9 25.72 26.59 -0.87 1988-09-01
## 466 1988 10 24.82 26.54 -1.71 1988-10-01
## 467 1988 11 24.66 26.50 -1.85 1988-11-01
## 468 1988 12 24.64 26.47 -1.83 1988-12-01
## 469 1989 1 24.59 26.46 -1.87 1989-01-01
## 470 1989 2 25.29 26.66 -1.37 1989-02-01
## 471 1989 3 26.09 27.14 -1.05 1989-03-01
## 472 1989 4 26.75 27.58 -0.82 1989-04-01
## 473 1989 5 27.07 27.68 -0.61 1989-05-01
## 474 1989 6 27.14 27.43 -0.29 1989-06-01
## 475 1989 7 26.71 27.01 -0.30 1989-07-01
## 476 1989 8 26.32 26.66 -0.33 1989-08-01
## 477 1989 9 26.41 26.59 -0.18 1989-09-01
## 478 1989 10 26.32 26.54 -0.22 1989-10-01
## 479 1989 11 26.25 26.50 -0.25 1989-11-01
## 480 1989 12 26.46 26.47 -0.01 1989-12-01
## 481 1990 1 26.56 26.46 0.11 1990-01-01
## 482 1990 2 26.98 26.66 0.31 1990-02-01
## 483 1990 3 27.34 27.14 0.20 1990-03-01
## 484 1990 4 27.90 27.58 0.33 1990-04-01
## 485 1990 5 28.02 27.68 0.34 1990-05-01
## 486 1990 6 27.65 27.43 0.21 1990-06-01
## 487 1990 7 27.38 27.01 0.37 1990-07-01
## 488 1990 8 27.07 26.66 0.42 1990-08-01
## 489 1990 9 26.94 26.59 0.35 1990-09-01
## 490 1990 10 26.93 26.54 0.40 1990-10-01
## 491 1990 11 26.81 26.50 0.31 1990-11-01
## 492 1990 12 26.96 26.47 0.48 1990-12-01
## 493 1991 1 27.04 26.59 0.45 1991-01-01
## 494 1991 2 27.08 26.79 0.29 1991-02-01
## 495 1991 3 27.33 27.28 0.05 1991-03-01
## 496 1991 4 28.02 27.70 0.32 1991-04-01
## 497 1991 5 28.20 27.80 0.40 1991-05-01
## 498 1991 6 28.25 27.60 0.65 1991-06-01
## 499 1991 7 28.05 27.19 0.86 1991-07-01
## 500 1991 8 27.53 26.84 0.69 1991-08-01
## 501 1991 9 27.14 26.78 0.36 1991-09-01
## 502 1991 10 27.58 26.76 0.82 1991-10-01
## 503 1991 11 27.89 26.70 1.19 1991-11-01
## 504 1991 12 28.28 26.66 1.62 1991-12-01
## 505 1992 1 28.37 26.59 1.78 1992-01-01
## 506 1992 2 28.53 26.79 1.74 1992-02-01
## 507 1992 3 28.66 27.28 1.38 1992-03-01
## 508 1992 4 29.02 27.70 1.32 1992-04-01
## 509 1992 5 28.97 27.80 1.16 1992-05-01
## 510 1992 6 28.30 27.60 0.70 1992-06-01
## 511 1992 7 27.51 27.19 0.33 1992-07-01
## 512 1992 8 26.91 26.84 0.07 1992-08-01
## 513 1992 9 26.66 26.78 -0.13 1992-09-01
## 514 1992 10 26.42 26.76 -0.34 1992-10-01
## 515 1992 11 26.42 26.70 -0.28 1992-11-01
## 516 1992 12 26.45 26.66 -0.21 1992-12-01
## 517 1993 1 26.70 26.59 0.10 1993-01-01
## 518 1993 2 27.17 26.79 0.38 1993-02-01
## 519 1993 3 27.68 27.28 0.40 1993-03-01
## 520 1993 4 28.41 27.70 0.71 1993-04-01
## 521 1993 5 28.71 27.80 0.91 1993-05-01
## 522 1993 6 28.08 27.60 0.48 1993-06-01
## 523 1993 7 27.52 27.19 0.33 1993-07-01
## 524 1993 8 26.99 26.84 0.15 1993-08-01
## 525 1993 9 27.07 26.78 0.29 1993-09-01
## 526 1993 10 26.78 26.76 0.02 1993-10-01
## 527 1993 11 26.71 26.70 0.01 1993-11-01
## 528 1993 12 26.76 26.66 0.10 1993-12-01
## 529 1994 1 26.65 26.59 0.06 1994-01-01
## 530 1994 2 26.82 26.79 0.03 1994-02-01
## 531 1994 3 27.39 27.28 0.11 1994-03-01
## 532 1994 4 28.08 27.70 0.38 1994-04-01
## 533 1994 5 28.24 27.80 0.43 1994-05-01
## 534 1994 6 28.04 27.60 0.44 1994-06-01
## 535 1994 7 27.54 27.19 0.35 1994-07-01
## 536 1994 8 27.38 26.84 0.54 1994-08-01
## 537 1994 9 27.19 26.78 0.41 1994-09-01
## 538 1994 10 27.47 26.76 0.71 1994-10-01
## 539 1994 11 27.81 26.70 1.11 1994-11-01
## 540 1994 12 27.85 26.66 1.19 1994-12-01
## 541 1995 1 27.57 26.59 0.98 1995-01-01
## 542 1995 2 27.49 26.79 0.71 1995-02-01
## 543 1995 3 27.76 27.28 0.48 1995-03-01
## 544 1995 4 28.11 27.70 0.41 1995-04-01
## 545 1995 5 27.83 27.80 0.02 1995-05-01
## 546 1995 6 27.59 27.60 -0.01 1995-06-01
## 547 1995 7 27.08 27.19 -0.11 1995-07-01
## 548 1995 8 26.23 26.84 -0.61 1995-08-01
## 549 1995 9 25.88 26.78 -0.90 1995-09-01
## 550 1995 10 25.84 26.76 -0.92 1995-10-01
## 551 1995 11 25.61 26.70 -1.10 1995-11-01
## 552 1995 12 25.66 26.66 -1.00 1995-12-01
## 553 1996 1 25.70 26.56 -0.86 1996-01-01
## 554 1996 2 25.91 26.75 -0.85 1996-02-01
## 555 1996 3 26.69 27.24 -0.56 1996-03-01
## 556 1996 4 27.36 27.72 -0.36 1996-04-01
## 557 1996 5 27.55 27.81 -0.26 1996-05-01
## 558 1996 6 27.29 27.59 -0.30 1996-06-01
## 559 1996 7 26.85 27.18 -0.32 1996-07-01
## 560 1996 8 26.64 26.83 -0.20 1996-08-01
## 561 1996 9 26.27 26.73 -0.45 1996-09-01
## 562 1996 10 26.27 26.67 -0.40 1996-10-01
## 563 1996 11 26.29 26.63 -0.34 1996-11-01
## 564 1996 12 25.96 26.56 -0.61 1996-12-01
## 565 1997 1 26.02 26.56 -0.54 1997-01-01
## 566 1997 2 26.39 26.75 -0.36 1997-02-01
## 567 1997 3 27.05 27.24 -0.20 1997-03-01
## 568 1997 4 27.99 27.72 0.27 1997-04-01
## 569 1997 5 28.58 27.81 0.76 1997-05-01
## 570 1997 6 28.81 27.59 1.22 1997-06-01
## 571 1997 7 28.85 27.18 1.67 1997-07-01
## 572 1997 8 28.74 26.83 1.91 1997-08-01
## 573 1997 9 28.84 26.73 2.12 1997-09-01
## 574 1997 10 29.07 26.67 2.40 1997-10-01
## 575 1997 11 29.11 26.63 2.48 1997-11-01
## 576 1997 12 28.89 26.56 2.32 1997-12-01
## 577 1998 1 28.93 26.56 2.37 1998-01-01
## 578 1998 2 28.79 26.75 2.03 1998-02-01
## 579 1998 3 28.63 27.24 1.38 1998-03-01
## 580 1998 4 28.61 27.72 0.90 1998-04-01
## 581 1998 5 28.52 27.81 0.70 1998-05-01
## 582 1998 6 27.35 27.59 -0.24 1998-06-01
## 583 1998 7 26.32 27.18 -0.86 1998-07-01
## 584 1998 8 25.59 26.83 -1.25 1998-08-01
## 585 1998 9 25.47 26.73 -1.26 1998-09-01
## 586 1998 10 25.26 26.67 -1.41 1998-10-01
## 587 1998 11 25.25 26.63 -1.38 1998-11-01
## 588 1998 12 24.92 26.56 -1.64 1998-12-01
## 589 1999 1 24.87 26.56 -1.69 1999-01-01
## 590 1999 2 25.44 26.75 -1.31 1999-02-01
## 591 1999 3 26.34 27.24 -0.90 1999-03-01
## 592 1999 4 26.71 27.72 -1.00 1999-04-01
## 593 1999 5 26.79 27.81 -1.02 1999-05-01
## 594 1999 6 26.54 27.59 -1.05 1999-06-01
## 595 1999 7 26.13 27.18 -1.05 1999-07-01
## 596 1999 8 25.64 26.83 -1.19 1999-08-01
## 597 1999 9 25.63 26.73 -1.09 1999-09-01
## 598 1999 10 25.48 26.67 -1.19 1999-10-01
## 599 1999 11 25.13 26.63 -1.50 1999-11-01
## 600 1999 12 24.87 26.56 -1.70 1999-12-01
## 601 2000 1 24.79 26.56 -1.77 2000-01-01
## 602 2000 2 25.23 26.75 -1.53 2000-02-01
## 603 2000 3 26.31 27.24 -0.93 2000-03-01
## 604 2000 4 26.96 27.72 -0.75 2000-04-01
## 605 2000 5 27.08 27.81 -0.74 2000-05-01
## 606 2000 6 26.95 27.59 -0.64 2000-06-01
## 607 2000 7 26.63 27.18 -0.55 2000-07-01
## 608 2000 8 26.37 26.83 -0.47 2000-08-01
## 609 2000 9 26.20 26.73 -0.52 2000-09-01
## 610 2000 10 26.02 26.67 -0.65 2000-10-01
## 611 2000 11 25.92 26.63 -0.71 2000-11-01
## 612 2000 12 25.69 26.56 -0.88 2000-12-01
## 613 2001 1 25.82 26.45 -0.63 2001-01-01
## 614 2001 2 26.14 26.66 -0.53 2001-02-01
## 615 2001 3 26.82 27.21 -0.39 2001-03-01
## 616 2001 4 27.34 27.73 -0.39 2001-04-01
## 617 2001 5 27.60 27.85 -0.24 2001-05-01
## 618 2001 6 27.54 27.65 -0.11 2001-06-01
## 619 2001 7 27.25 27.26 -0.01 2001-07-01
## 620 2001 8 26.80 26.91 -0.10 2001-08-01
## 621 2001 9 26.52 26.80 -0.28 2001-09-01
## 622 2001 10 26.57 26.75 -0.18 2001-10-01
## 623 2001 11 26.34 26.75 -0.41 2001-11-01
## 624 2001 12 26.20 26.65 -0.46 2001-12-01
## 625 2002 1 26.40 26.45 -0.05 2002-01-01
## 626 2002 2 26.72 26.66 0.06 2002-02-01
## 627 2002 3 27.30 27.21 0.09 2002-03-01
## 628 2002 4 27.85 27.73 0.12 2002-04-01
## 629 2002 5 28.24 27.85 0.40 2002-05-01
## 630 2002 6 28.44 27.65 0.79 2002-06-01
## 631 2002 7 28.03 27.26 0.77 2002-07-01
## 632 2002 8 27.72 26.91 0.81 2002-08-01
## 633 2002 9 27.81 26.80 1.01 2002-09-01
## 634 2002 10 27.96 26.75 1.20 2002-10-01
## 635 2002 11 28.16 26.75 1.41 2002-11-01
## 636 2002 12 27.97 26.65 1.31 2002-12-01
## 637 2003 1 27.16 26.45 0.70 2003-01-01
## 638 2003 2 27.40 26.66 0.74 2003-02-01
## 639 2003 3 27.66 27.21 0.45 2003-03-01
## 640 2003 4 27.69 27.73 -0.05 2003-04-01
## 641 2003 5 27.32 27.85 -0.52 2003-05-01
## 642 2003 6 27.44 27.65 -0.21 2003-06-01
## 643 2003 7 27.50 27.26 0.24 2003-07-01
## 644 2003 8 27.11 26.91 0.20 2003-08-01
## 645 2003 9 26.98 26.80 0.19 2003-09-01
## 646 2003 10 27.14 26.75 0.38 2003-10-01
## 647 2003 11 27.04 26.75 0.29 2003-11-01
## 648 2003 12 27.04 26.65 0.38 2003-12-01
## 649 2004 1 26.83 26.45 0.38 2004-01-01
## 650 2004 2 27.00 26.66 0.34 2004-02-01
## 651 2004 3 27.41 27.21 0.21 2004-03-01
## 652 2004 4 27.89 27.73 0.16 2004-04-01
## 653 2004 5 27.99 27.85 0.14 2004-05-01
## 654 2004 6 27.85 27.65 0.20 2004-06-01
## 655 2004 7 27.77 27.26 0.51 2004-07-01
## 656 2004 8 27.60 26.91 0.70 2004-08-01
## 657 2004 9 27.52 26.80 0.72 2004-09-01
## 658 2004 10 27.44 26.75 0.68 2004-10-01
## 659 2004 11 27.36 26.75 0.61 2004-11-01
## 660 2004 12 27.34 26.65 0.69 2004-12-01
## 661 2005 1 27.21 26.45 0.76 2005-01-01
## 662 2005 2 27.12 26.66 0.46 2005-02-01
## 663 2005 3 27.74 27.21 0.53 2005-03-01
## 664 2005 4 28.09 27.73 0.35 2005-04-01
## 665 2005 5 28.24 27.85 0.39 2005-05-01
## 666 2005 6 27.77 27.65 0.12 2005-06-01
## 667 2005 7 27.07 27.26 -0.19 2005-07-01
## 668 2005 8 26.80 26.91 -0.10 2005-08-01
## 669 2005 9 26.68 26.80 -0.11 2005-09-01
## 670 2005 10 26.65 26.75 -0.10 2005-10-01
## 671 2005 11 26.11 26.75 -0.64 2005-11-01
## 672 2005 12 25.68 26.65 -0.97 2005-12-01
## 673 2006 1 25.64 26.55 -0.91 2006-01-01
## 674 2006 2 26.09 26.76 -0.67 2006-02-01
## 675 2006 3 26.58 27.29 -0.71 2006-03-01
## 676 2006 4 27.51 27.83 -0.32 2006-04-01
## 677 2006 5 27.85 27.94 -0.09 2006-05-01
## 678 2006 6 27.73 27.73 0.00 2006-06-01
## 679 2006 7 27.30 27.29 0.01 2006-07-01
## 680 2006 8 27.16 26.86 0.31 2006-08-01
## 681 2006 9 27.32 26.72 0.60 2006-09-01
## 682 2006 10 27.42 26.72 0.70 2006-10-01
## 683 2006 11 27.70 26.70 0.99 2006-11-01
## 684 2006 12 27.74 26.60 1.14 2006-12-01
## 685 2007 1 27.25 26.55 0.70 2007-01-01
## 686 2007 2 26.90 26.76 0.13 2007-02-01
## 687 2007 3 27.12 27.29 -0.18 2007-03-01
## 688 2007 4 27.51 27.83 -0.31 2007-04-01
## 689 2007 5 27.46 27.94 -0.47 2007-05-01
## 690 2007 6 27.37 27.73 -0.36 2007-06-01
## 691 2007 7 26.70 27.29 -0.59 2007-07-01
## 692 2007 8 26.13 26.86 -0.72 2007-08-01
## 693 2007 9 25.61 26.72 -1.11 2007-09-01
## 694 2007 10 25.33 26.72 -1.39 2007-10-01
## 695 2007 11 25.17 26.70 -1.53 2007-11-01
## 696 2007 12 25.02 26.60 -1.58 2007-12-01
## 697 2008 1 24.87 26.55 -1.68 2008-01-01
## 698 2008 2 25.10 26.76 -1.66 2008-02-01
## 699 2008 3 26.09 27.29 -1.21 2008-03-01
## 700 2008 4 26.84 27.83 -0.99 2008-04-01
## 701 2008 5 27.09 27.94 -0.84 2008-05-01
## 702 2008 6 27.04 27.73 -0.68 2008-06-01
## 703 2008 7 26.99 27.29 -0.30 2008-07-01
## 704 2008 8 26.72 26.86 -0.13 2008-08-01
## 705 2008 9 26.47 26.72 -0.25 2008-09-01
## 706 2008 10 26.37 26.72 -0.35 2008-10-01
## 707 2008 11 26.25 26.70 -0.46 2008-11-01
## 708 2008 12 25.74 26.60 -0.86 2008-12-01
## 709 2009 1 25.67 26.55 -0.89 2009-01-01
## 710 2009 2 25.97 26.76 -0.79 2009-02-01
## 711 2009 3 26.60 27.29 -0.70 2009-03-01
## 712 2009 4 27.48 27.83 -0.35 2009-04-01
## 713 2009 5 27.99 27.94 0.06 2009-05-01
## 714 2009 6 28.04 27.73 0.31 2009-06-01
## 715 2009 7 27.77 27.29 0.48 2009-07-01
## 716 2009 8 27.42 26.86 0.56 2009-08-01
## 717 2009 9 27.40 26.72 0.68 2009-09-01
## 718 2009 10 27.61 26.72 0.89 2009-10-01
## 719 2009 11 28.15 26.70 1.45 2009-11-01
## 720 2009 12 28.33 26.60 1.73 2009-12-01
## 721 2010 1 28.06 26.55 1.51 2010-01-01
## 722 2010 2 28.01 26.76 1.25 2010-02-01
## 723 2010 3 28.19 27.29 0.90 2010-03-01
## 724 2010 4 28.21 27.83 0.38 2010-04-01
## 725 2010 5 27.72 27.94 -0.22 2010-05-01
## 726 2010 6 27.04 27.73 -0.69 2010-06-01
## 727 2010 7 26.22 27.29 -1.07 2010-07-01
## 728 2010 8 25.47 26.86 -1.38 2010-08-01
## 729 2010 9 25.12 26.72 -1.59 2010-09-01
## 730 2010 10 25.03 26.72 -1.69 2010-10-01
## 731 2010 11 25.06 26.70 -1.64 2010-11-01
## 732 2010 12 25.00 26.60 -1.60 2010-12-01
## 733 2011 1 25.01 26.55 -1.54 2011-01-01
## 734 2011 2 25.66 26.76 -1.11 2011-02-01
## 735 2011 3 26.38 27.29 -0.92 2011-03-01
## 736 2011 4 27.07 27.83 -0.76 2011-04-01
## 737 2011 5 27.41 27.94 -0.52 2011-05-01
## 738 2011 6 27.35 27.73 -0.38 2011-06-01
## 739 2011 7 26.87 27.29 -0.42 2011-07-01
## 740 2011 8 26.21 26.86 -0.64 2011-08-01
## 741 2011 9 25.92 26.72 -0.80 2011-09-01
## 742 2011 10 25.67 26.72 -1.05 2011-10-01
## 743 2011 11 25.52 26.70 -1.18 2011-11-01
## 744 2011 12 25.55 26.60 -1.05 2011-12-01
## 745 2012 1 25.68 26.55 -0.87 2012-01-01
## 746 2012 2 26.10 26.76 -0.67 2012-02-01
## 747 2012 3 26.69 27.29 -0.61 2012-03-01
## 748 2012 4 27.33 27.83 -0.49 2012-04-01
## 749 2012 5 27.62 27.94 -0.32 2012-05-01
## 750 2012 6 27.75 27.73 0.02 2012-06-01
## 751 2012 7 27.54 27.29 0.25 2012-07-01
## 752 2012 8 27.32 26.86 0.47 2012-08-01
## 753 2012 9 27.10 26.72 0.38 2012-09-01
## 754 2012 10 26.98 26.72 0.26 2012-10-01
## 755 2012 11 26.86 26.70 0.15 2012-11-01
## 756 2012 12 26.35 26.60 -0.25 2012-12-01
## 757 2013 1 26.02 26.55 -0.53 2013-01-01
## 758 2013 2 26.25 26.76 -0.51 2013-02-01
## 759 2013 3 27.04 27.29 -0.25 2013-03-01
## 760 2013 4 27.58 27.83 -0.25 2013-04-01
## 761 2013 5 27.53 27.94 -0.40 2013-05-01
## 762 2013 6 27.30 27.73 -0.43 2013-06-01
## 763 2013 7 26.90 27.29 -0.39 2013-07-01
## 764 2013 8 26.47 26.86 -0.38 2013-08-01
## 765 2013 9 26.53 26.72 -0.18 2013-09-01
## 766 2013 10 26.52 26.72 -0.20 2013-10-01
## 767 2013 11 26.56 26.70 -0.14 2013-11-01
## 768 2013 12 26.43 26.60 -0.17 2013-12-01
## 769 2014 1 26.06 26.55 -0.49 2014-01-01
## 770 2014 2 26.15 26.76 -0.61 2014-02-01
## 771 2014 3 27.02 27.29 -0.28 2014-03-01
## 772 2014 4 27.91 27.83 0.09 2014-04-01
## 773 2014 5 28.26 27.94 0.32 2014-05-01
## 774 2014 6 27.96 27.73 0.23 2014-06-01
## 775 2014 7 27.23 27.29 -0.06 2014-07-01
## 776 2014 8 26.83 26.86 -0.03 2014-08-01
## 777 2014 9 27.01 26.72 0.29 2014-09-01
## 778 2014 10 27.16 26.72 0.44 2014-10-01
## 779 2014 11 27.46 26.70 0.75 2014-11-01
## 780 2014 12 27.32 26.60 0.72 2014-12-01
## 781 2015 1 27.06 26.55 0.51 2015-01-01
## 782 2015 2 27.18 26.76 0.42 2015-02-01
## 783 2015 3 27.77 27.29 0.47 2015-03-01
## 784 2015 4 28.53 27.83 0.70 2015-04-01
## 785 2015 5 28.85 27.94 0.92 2015-05-01
## 786 2015 6 28.90 27.73 1.17 2015-06-01
## 787 2015 7 28.75 27.29 1.45 2015-07-01
## 788 2015 8 28.78 26.86 1.93 2015-08-01
## 789 2015 9 28.92 26.72 2.20 2015-09-01
## 790 2015 10 29.07 26.72 2.36 2015-10-01
## 791 2015 11 29.41 26.70 2.71 2015-11-01
## 792 2015 12 29.26 26.60 2.65 2015-12-01
## 793 2016 1 29.11 26.55 2.56 2016-01-01
## 794 2016 2 29.00 26.76 2.24 2016-02-01
## 795 2016 3 28.90 27.29 1.61 2016-03-01
## 796 2016 4 28.73 27.83 0.90 2016-04-01
## 797 2016 5 28.24 27.94 0.30 2016-05-01
## 798 2016 6 27.70 27.73 -0.03 2016-06-01
## 799 2016 7 26.82 27.29 -0.47 2016-07-01
## 800 2016 8 26.28 26.86 -0.57 2016-08-01
## 801 2016 9 26.15 26.72 -0.57 2016-09-01
## 802 2016 10 25.98 26.72 -0.74 2016-10-01
## 803 2016 11 25.95 26.70 -0.76 2016-11-01
## 804 2016 12 26.10 26.60 -0.50 2016-12-01
## 805 2017 1 26.12 26.55 -0.43 2017-01-01
## 806 2017 2 26.68 26.76 -0.08 2017-02-01
## 807 2017 3 27.33 27.29 0.03 2017-03-01
## 808 2017 4 28.04 27.83 0.21 2017-04-01
## 809 2017 5 28.30 27.94 0.36 2017-05-01
## 810 2017 6 28.06 27.73 0.33 2017-06-01
## 811 2017 7 27.54 27.29 0.25 2017-07-01
## 812 2017 8 26.70 26.86 -0.16 2017-08-01
## 813 2017 9 26.29 26.72 -0.43 2017-09-01
## 814 2017 10 26.15 26.72 -0.56 2017-10-01
## 815 2017 11 25.74 26.70 -0.96 2017-11-01
## 816 2017 12 25.62 26.60 -0.99 2017-12-01
## 817 2018 1 25.57 26.55 -0.98 2018-01-01
## 818 2018 2 25.98 26.76 -0.78 2018-02-01
## 819 2018 3 26.50 27.29 -0.80 2018-03-01
## 820 2018 4 27.32 27.83 -0.51 2018-04-01
## 821 2018 5 27.74 27.94 -0.20 2018-05-01
## 822 2018 6 27.77 27.73 0.05 2018-06-01
## 823 2018 7 27.42 27.29 0.12 2018-07-01
## 824 2018 8 26.95 26.86 0.09 2018-08-01
## 825 2018 9 27.19 26.72 0.47 2018-09-01
## 826 2018 10 27.62 26.72 0.90 2018-10-01
## 827 2018 11 27.61 26.70 0.90 2018-11-01
## 828 2018 12 27.49 26.60 0.89 2018-12-01
## 829 2019 1 27.20 26.55 0.65 2019-01-01
## 830 2019 2 27.48 26.76 0.71 2019-02-01
## 831 2019 3 28.10 27.29 0.80 2019-03-01
## 832 2019 4 28.45 27.83 0.62 2019-04-01
## 833 2019 5 28.49 27.94 0.55 2019-05-01
## 834 2019 6 28.18 27.73 0.45 2019-06-01
## 835 2019 7 27.64 27.29 0.35 2019-07-01
## 836 2019 8 26.90 26.86 0.04 2019-08-01
## 837 2019 9 26.75 26.72 0.04 2019-09-01
## 838 2019 10 27.20 26.72 0.48 2019-10-01
## 839 2019 11 27.23 26.70 0.52 2019-11-01
## 840 2019 12 27.12 26.60 0.52 2019-12-01
## 841 2020 1 27.16 26.55 0.60 2020-01-01
## 842 2020 2 27.13 26.76 0.37 2020-02-01
## 843 2020 3 27.77 27.29 0.48 2020-03-01
## 844 2020 4 28.19 27.83 0.36 2020-04-01
## 845 2020 5 27.66 27.94 -0.27 2020-05-01
## 846 2020 6 27.39 27.73 -0.34 2020-06-01
## 847 2020 7 26.99 27.29 -0.30 2020-07-01
## 848 2020 8 26.27 26.86 -0.59 2020-08-01
## 849 2020 9 25.89 26.72 -0.83 2020-09-01
## 850 2020 10 25.46 26.72 -1.25 2020-10-01
## 851 2020 11 25.28 26.70 -1.42 2020-11-01
## 852 2020 12 25.45 26.60 -1.15 2020-12-01
## 853 2021 1 25.56 26.55 -0.99 2021-01-01
## 854 2021 2 25.76 26.76 -1.00 2021-02-01
## 855 2021 3 26.50 27.29 -0.80 2021-03-01
## 856 2021 4 27.11 27.83 -0.72 2021-04-01
## 857 2021 5 27.48 27.94 -0.46 2021-05-01
## 858 2021 6 27.45 27.73 -0.28 2021-06-01
## 859 2021 7 26.90 27.29 -0.39 2021-07-01
## 860 2021 8 26.32 26.86 -0.53 2021-08-01
## 861 2021 9 26.16 26.72 -0.55 2021-09-01
## 862 2021 10 25.78 26.72 -0.94 2021-10-01
## 863 2021 11 25.76 26.70 -0.94 2021-11-01
## 864 2021 12 25.54 26.60 -1.06 2021-12-01
## 865 2022 1 25.61 26.55 -0.95 2022-01-01
## 866 2022 2 25.88 26.76 -0.89 2022-02-01
## 867 2022 3 26.33 27.29 -0.97 2022-03-01
## 868 2022 4 26.72 27.83 -1.11 2022-04-01
## 869 2022 5 26.83 27.94 -1.11 2022-05-01
## 870 2022 6 26.98 27.73 -0.75 2022-06-01
## 871 2022 7 26.60 27.29 -0.70 2022-07-01
## 872 2022 8 25.88 26.86 -0.97 2022-08-01
## 873 2022 9 25.65 26.72 -1.07 2022-09-01
## 874 2022 10 25.73 26.72 -0.99 2022-10-01
## 875 2022 11 25.80 26.70 -0.90 2022-11-01
## 876 2022 12 25.75 26.60 -0.86 2022-12-01
## 877 2023 1 25.83 26.55 -0.72 2023-01-01
## 878 2023 2 26.30 26.76 -0.46 2023-02-01
## 879 2023 3 27.18 27.29 -0.11 2023-03-01
## 880 2023 4 27.96 27.83 0.13 2023-04-01
## 881 2023 5 28.39 27.94 0.46 2023-05-01
## 882 2023 6 28.56 27.73 0.84 2023-06-01
## 883 2023 7 28.31 27.29 1.02 2023-07-01
## 884 2023 8 28.20 26.86 1.35 2023-08-01
## 885 2023 9 28.32 26.72 1.60 2023-09-01
## 886 2023 10 28.44 26.72 1.72 2023-10-01
## 887 2023 11 28.72 26.70 2.02 2023-11-01
## 888 2023 12 28.67 26.60 2.07 2023-12-01As part of the fourth step, we activate two packages, namely gganimate and lubridate, which are necessary for visualizing the scraped data
library(gganimate)## Loading required package: ggplot2## Warning: package 'ggplot2' was built under R version 4.0.5library(lubridate)## Warning: package 'lubridate' was built under R version 4.0.5##
## Attaching package: 'lubridate'## The following objects are masked from 'package:base':
##
## date, intersect, setdiff, unionAt the last step, we are prepared to create an interactive visualization of the data
x <- ninoindex %>%
ggplot(mapping = aes(x = PERIOD, y = ANOM)) +
geom_line() +
geom_point(size = 2) +
geom_ribbon(aes(ymin = pmin(ANOM, 0), ymax = pmax(ANOM, 0)), fill = "darkblue", alpha = 0.5) +
geom_ribbon(aes(ymin = pmin(ANOM, 0), ymax = 0), fill = "pink", alpha = 0.5) +
labs(x = "Period", y = "Anomaly Index", title = "El Nino Index during January 1950 - December 2023",
caption = "Visualization: jokoding.com") +
geom_text(aes(label = "El Nino Index"), hjust = 0, size = 3) +
transition_reveal(PERIOD) +
theme(legend.position = "none")
animate(x, height = 7,
width = 9, units = "in", res = 150)## geom_path: Each group consists of only one observation. Do you need to adjust
## the group aesthetic?
## geom_path: Each group consists of only one observation. Do you need to adjust
## the group aesthetic?