Summary statistics for a_c2_9 variable in snf_rollup2540_96_1998 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_9 |      8,422    49639.35    97322.61     -29741    2222505

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