Summary statistics for cawbo19ages dataset : by Jean Roth , jroth@nber.org , 2 Jan 2018 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- year | 304,961 1992.753 13.85006 1969 2016 st | 0 stfips | 0 county | 0 registry | 304,961 36.59786 11.48184 1 41 -------------+--------------------------------------------------------- race | 304,961 1.995944 .8303536 1 3 hispanic | 304,961 9 0 9 9 sex | 304,961 1.498162 .4999974 1 2 age | 304,961 8.902243 5.431399 0 18 pop | 304,961 4717.817 17814.64 1 374236 by Jean Roth , jroth@nber.org , 2 Jan 2018