Summary statistics for a_c1_9 variable in prds_hosp10_yr2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
      a_c1_9 |      5,194     1003080     1681586          1   3.42e+07

by Jean Roth , jroth@nber.org , 24 Aug 2018