Summary statistics for e4_c3_9 variable in prds_hosp10_yr2010 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     e4_c3_9 |        449    79.49243    115.4777        .02     679.97

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