Summary statistics for a_c2_21 variable in snf_rollup2540_96_1998 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_21 |      4,528    20118.32    53235.13   -1641313    2183192

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