Summary statistics for a_c2_5 variable in snf_rollup2540_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_5 |     11,904    202787.5    228483.2     -87510    4059809

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