Summary statistics for jcaho_acrdtd_y_match_dt variable in posclia2016 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- jcaho_acrd~t | 2,409 2.00e+07 74151.01 2.00e+07 2.02e+07 by Jean Roth , jroth@nber.org , 10 Jan 2017