Summary statistics for d_4_hos_c12_90 variable in prds_hosp10_yr2013 dataset :

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
d_4_ho~12_90 |      2,156     4751613    1.43e+07         12   3.37e+08

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