Summary statistics for a_c1_9 variable in hosp_rollup2552_96_2001 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c1_9 |      3,275    130357.2    250981.9      -3786    4611542

by Jean Roth , jroth@nber.org , 9 Sep 2018