Summary statistics for acrdtn_efctv_dt variable in pos2013 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
acrdtn_efc~t |      7,093    2.00e+07    86674.92   1.97e+07   2.02e+07

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