Summary statistics for e4_c2_9 variable in prds_hosp10_yr2012 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     e4_c2_9 |        846     49.8981    80.63413        .02     668.15

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