Summary statistics for a_c1_91 variable in prds_hosp10_yr2012 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
     a_c1_91 |      4,611     3518428     4728541         31   6.77e+07

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