Summary statistics for backsurgeryper1000medicareenroll variable in 1995_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
backsurger~l |        720    2.665465     1.04647   .6607032   7.499381

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