Summary statistics for a7_3_c9_4 variable in hosp_rollup2552_96_1996 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   a7_3_c9_4 |      5,102     1311908     2209521   -2968434   3.87e+07

by Jean Roth , jroth@nber.org , 3 Sep 2018