Summary statistics for hipreplacementper1000medicareenr variable in 2003_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
hipreplace~r |         52    3.322324    .7766961   .9349751   4.640103

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