Summary statistics for a_c6_13 variable in snf_rollup2540_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c6_13 |      1,553   -2019.401    21055.73    -477981     164937

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