Summary statistics for cholecystectomyper1000medicareen variable in 2005_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
cholecyste~n |         52    3.967991    .6961007     2.4005   5.500028

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