Summary statistics for rpsr2014q2 dataset : by Jean Roth , jroth@nber.org , 6 Apr 2017 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- primaryid | 22,647 1.02e+08 1.89e+07 3.62e+07 9.42e+08 caseid | 22,647 1.01e+07 402289.7 3624126 1.06e+07 rpsr_cod | 0 by Jean Roth , jroth@nber.org , 6 Apr 2017