Summary statistics for e4_c3_9 variable in prds_hosp10_yr2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     e4_c3_9 |      1,098    71.80147    110.8404        .01    1014.46

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