Summary statistics for a_c2_9 variable in hosp_rollup2552_96_2001 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c2_9 |      5,339    255710.1    440427.4   -1153668    4966524

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