Summary statistics for a_c1_9 variable in hosp_rollup2552_96_2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c1_9 |          9    19897.56    16251.91       2995      49566

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