Summary statistics for a_c6_4 variable in snf_rollup2540_96_2000 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c6_4 |     12,117   -100691.9    454101.2  -1.44e+07    3842784

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