Summary statistics for a_c1_12 variable in snf_rollup2540_96_1996 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c1_12 |      6,126     29793.7    148284.3       -309   1.09e+07

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