Summary statistics for e4_c1_9 variable in prds_hosp10_yr2013 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     e4_c1_9 |        998    37.71705    42.61706        .02     369.71

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