Summary statistics for rpsr2013q4 dataset : by Jean Roth , jroth@nber.org , 6 Apr 2017 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- primaryid | 26,710 9.70e+07 1.25e+07 4.78e+07 8.42e+08 caseid | 26,710 9675070 272309.9 4784484 1.03e+07 rpsr_cod | 0 by Jean Roth , jroth@nber.org , 6 Apr 2017