Summary statistics for a8_c2_12 variable in hosp_rollup2552_96_2002 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
    a8_c2_12 |      5,695    -2206903     6863710  -1.77e+08         -1

by Jean Roth , jroth@nber.org , 10 Sep 2018