Summary statistics for a_c6_9940 variable in prds_hosp10_yr2010 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
   a_c6_9940 |          1      -14961           .     -14961     -14961

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