Summary statistics for cholecystectomyper1000medicareen variable in 1994_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
cholecyste~n |         52    5.071979    .6694204    3.72621   6.586389

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