Summary statistics for a_c6_30 variable in snf_rollup2540_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c6_30 |      3,274    126275.9    168914.6   -1059304    1147728

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