Summary statistics for a_c2_30 variable in snf_rollup2540_96_1998 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_30 |     11,561    112058.6    132732.7     -60610    1913261

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