Summary statistics for trmntn_exprtn_dt variable in posclia2012 dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- trmntn_exp~t | 417,354 2.01e+07 64055.91 1.99e+07 2.02e+07 by Jean Roth , jroth@nber.org , 26 Jan 2016