Summary statistics for a_c2_30 variable in snf_rollup2540_96_2002 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_30 |     11,548    139766.9    152831.7     -42878    1890793

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