Summary statistics for kneereplacementper1000medicareen variable in 2006_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
kneereplac~n |        307    8.898504    1.800843   3.097087   14.17174

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