Summary statistics for usrace19agesadj dataset : by Jean Roth , jroth@nber.org , 2 Jan 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- year | 15,837,470 2004.103 7.680107 1990 2016 st | 0 stfips | 0 county | 0 registry | 15,837,470 85.39807 26.418 1 99 -------------+--------------------------------------------------------- race | 15,837,470 2.196463 1.125214 1 4 hispanic | 15,837,470 .3722002 .4833914 0 1 sex | 15,837,470 1.501617 .4999974 1 2 age | 15,837,470 8.247686 5.169907 0 18 pop | 15,837,470 492.6823 2594.153 1 229303 by Jean Roth , jroth@nber.org , 2 Jan 2018