Summary statistics for a_c2_55 variable in hosp_rollup2552_96_2007 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c2_55 |      2,844     2529765     7352407   -1937881   9.36e+07

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