Summary statistics for cholecystectomyper1000medicareen variable in 2000_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
cholecyste~n |         52    4.729617    .8245875   2.776916   6.687239

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