Summary statistics for a_c6_9 variable in hosp_rollup2552_96_2002 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c6_9 |      1,283   -5091.256    385727.9   -6376912    4457948

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