Summary statistics for a_c6_21 variable in snf_rollup2540_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c6_21 |        631     2689.83     17347.7    -148094     124505

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