Summary statistics for a_c1_9 variable in hosp_rollup2552_96_1998 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c1_9 |      3,510    121633.1      229780       -122    4688051

by Jean Roth , jroth@nber.org , 6 Sep 2018