Summary statistics for hipreplacementper1000medicareenr variable in 2002_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
hipreplace~r |        882     3.08054    .8634008   .8441234   6.124565

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