Summary statistics for jcaho_acrdtd_y_match_dt variable in posclia2012 dataset Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- jcaho_acrd~t | 2,595 2.00e+07 58566.78 2.00e+07 2.01e+07 by Jean Roth , jroth@nber.org , 26 Jan 2016