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Popular names over time
Popularity can switch
We keep making Percivals, just not many

This example of data visualization using U.S. baby names is based on a data provided by the Social Security Administration (SSA) at SSA baby names and packaged by Hadley Wickham for use in R in the babynames package. The data itself and the visualizations here are decidedly gender binary - not as part of an agenda, that’s what we have for now.

Popularity can switch

Some names switch from being popular girl names to boy names or vice versa with some different patterns over time:

We keep making Percivals, just not many

Some names are not popular at all yet remain in use over long periods. The chart below shows the number of years a name had less than ten babies, for example, there have been 88 years (out of 136 years in the database) of at least one but less than 10 Percivals coming in to the world.