Summary statistics for cola_acrdtd_y_match_dt variable in posclia2016 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- cola_acrdt~t | 6,837 2.01e+07 82127.22 1.99e+07 2.02e+07 by Jean Roth , jroth@nber.org , 10 Jan 2017