Summary statistics for a7_3_c9_2 variable in hosp_rollup2552_96_2004 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   a7_3_c9_2 |        512      431913     2822858  -2.32e+07   3.44e+07

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