Summary statistics for a7_3_c9_4 variable in hosp_rollup2552_96_1997 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   a7_3_c9_4 |      5,432     1448188     2447895   -2009788   3.13e+07

by Jean Roth , jroth@nber.org , 5 Sep 2018