Summary statistics for a_c1_12 variable in snf_rollup2540_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c1_12 |      8,087    26875.05    30173.11       -325    1125456

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