Summary statistics for s5_c1_9 variable in prds_hosp10_yr2011 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     s5_c1_9 |         30    16.58367    9.417287          1         35

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