Summary statistics for a7_3_c9_1 variable in hosp_rollup2552_96_2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   a7_3_c9_1 |        668      995144     3006790  -2.09e+07   2.41e+07

by Jean Roth , jroth@nber.org , 21 Apr 2018