Summary statistics for c_1_c7_9930 variable in prds_hosp10_yr2010 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
 c_1_c7_9930 |          1     3152384           .    3152384    3152384

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