Data from https://ucr.fbi.gov/crime-in-the-u.s/2013/crime-in-the-u.s.-2013/tables/1tabledatadecoverviewpdf/table_1_crime_in_the_united_states_by_volume_and_rate_per_100000_inhabitants_1994-2013.xls

summary(crimerate$Year)

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##    1994    1999    2004    2004    2008    2013

summary(crimerate$Violent..crime..rate.)

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
##   367.9   451.9   477.6   501.9   534.2   713.6