Births by month, 1933-2015 (United States) and 1938-1991 (England & Wales)
boomerA tibble with 1,644 rows and 6 columns.
The variables are as follows:
date. Year and month. (Day is arbitrarily set to 01 for all observations, data are monthly.)
month. Month of the year (1-12).
n_days. The number of days in a given month/year date.
births. Total live births for that month.
total_pop. National population estimate for that month.
country. United States or England & Wales.