Summary statistics for a_c2_7 variable in snf_rollup2540_96_2002 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_7 |     12,540     51249.3    86915.68    -117772    2160310

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