Summary statistics for a_c1_4 variable in snf_rollup2540_96_2000 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c1_4 |     12,429    241059.8    309841.8          1   1.47e+07

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