Summary statistics for a_c1_9 variable in hosp_rollup2552_96_2007 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c1_9 |      2,907    145830.4    270392.2        -54    5224544

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