Summary statistics for e4_c1_9 variable in prds_hosp10_yr2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     e4_c1_9 |        988    37.97904    42.46166        .01     363.23

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