Summary statistics for a_c2_9 variable in snf_rollup2540_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_9 |      7,938    46605.89    89784.33     -51658    1571079

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