Summary statistics for rpsr2006q3 dataset : by Jean Roth , jroth@nber.org , 18 Dec 2015 Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- primaryid | 67016 5085127 21435.6 4967094 5160163 rpsr_cod | 0 by Jean Roth , jroth@nber.org , 18 Dec 2015