Summary statistics for kneereplacementper1000medicareen variable in 1995_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
kneereplac~n |         52     4.99142    1.226343   1.837812   7.892682

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