Summary statistics for cholecystectomyper1000medicareen variable in 1992_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
cholecyste~n |        307    5.868896    1.063062   3.378384    10.6271

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