Summary statistics for kneereplacementper1000medicareen variable in 1995_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
kneereplac~n |      1,268    4.791351    1.434048   1.229114   11.47238

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