Summary statistics for hipreplacementper1000medicareenr variable in 1995_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
hipreplace~r |        649    2.340097    .6449557   .7471905   4.244173

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