Summary statistics for cholecystectomyper1000medicareen variable in 2010_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
cholecyste~n |         52    3.224808    .5798259        1.9       4.41

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