Summary statistics for a_c1_9 variable in hosp_rollup2552_96_2009 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c1_9 |      2,818    149216.1    275677.4     -23963    5221362

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