Summary statistics for hipreplacementper1000medicareenr variable in 2004_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
hipreplace~r |        307    3.449468    .8830561   1.078814    5.71505

by Jean Roth , jroth@nber.org , 14 Mar 2018