Summary statistics for a_c6_4 variable in hosp_rollup2552_96_2000 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c6_4 |      4,121      227763     1500309  -2.23e+07   2.42e+07

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