Summary statistics for d_4_hos_c2_97 variable in prds_hosp10_yr2012 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
d_4_ho~c2_97 |          1        4339           .       4339       4339

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