Summary statistics for outc2015q1 dataset : by Jean Roth , jroth@nber.org , 6 Apr 2017 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- primaryid | 238,141 1.09e+08 4.98e+07 3.50e+07 1.07e+09 caseid | 238,141 1.06e+07 475733.4 3503293 1.12e+07 outc_cod | 0 by Jean Roth , jroth@nber.org , 6 Apr 2017