Summary statistics for e4_c2_9 variable in prds_hosp10_yr2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     e4_c2_9 |        818    50.50699    80.78214        .01      660.8

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