Summary statistics for a_c2_21 variable in snf_rollup2540_96_2002 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_21 |      9,150    8961.288    16544.14     -10459    1016813

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