Summary statistics for outc2018q4 dataset : by Jean Roth , jroth@nber.org , 7 Mar 2019 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- primaryid | 299,135 1.70e+08 1.42e+08 3.67e+07 1.56e+09 caseid | 299,135 1.52e+07 1022807 3670355 1.59e+07 outc_cod | 0 by Jean Roth , jroth@nber.org , 7 Mar 2019