Summary statistics for a_c2_4 variable in snf_rollup2540_96_2006 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_4 |     12,932    910065.5    894175.3  -2.24e+07   1.75e+07

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