Summary statistics for a_c2_30 variable in snf_rollup2540_96_2004 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_30 |     11,489    169452.7    180928.3     -43906    2847183

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