Summary statistics for a7_3_c9_4 variable in hosp_rollup2552_96_2000 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   a7_3_c9_4 |      5,325     2019227     3594399   -1823997   4.87e+07

by Jean Roth , jroth@nber.org , 8 Sep 2018