Summary statistics for a_c1_18 variable in snf_rollup2540_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c1_18 |      8,629    835851.8    631319.9       -428   1.21e+07

by Jean Roth , jroth@nber.org , 17 Feb 2018