Summary statistics for rpsr2016q1 dataset : by Jean Roth , jroth@nber.org , 6 Apr 2017 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- primaryid | 6,481 1.21e+08 1073114 1.17e+08 1.22e+08 caseid | 6,481 1.21e+07 107311.4 1.17e+07 1.22e+07 rpsr_cod | 0 by Jean Roth , jroth@nber.org , 6 Apr 2017