Summary statistics for a_c1_4 variable in snf_rollup2540_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c1_4 |     11,899    208864.1    254071.4    -112272   1.02e+07

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