Summary statistics for a_c2_5 variable in snf_rollup2540_96_2004 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_5 |     12,627      270275    333403.8      -8983    8843124

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