Summary statistics for a2la_acrdtd_y_match_dt variable in posclia2015 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
a2la_acrdt~t |          1    2.02e+07           .   2.02e+07   2.02e+07

by Jean Roth , jroth@nber.org , 26 Jan 2016