Summary statistics for kneereplacementper1000medicareen variable in 2005_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
kneereplac~n |         52     8.68137    1.924293   3.465445   12.80398

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