Summary statistics for a_c6_4 variable in hosp_rollup2552_96_2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c6_4 |      4,148      388560     3224534  -1.97e+07   9.71e+07

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