Summary statistics for kneereplacementper1000medicareen variable in 2008_10_sur

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
kneereplac~n |      3,347    6.948697    7.005107     -28.16      18.52

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