Summary statistics for backsurgeryper1000medicareenroll variable in 1996_surg_d

    Variable |        Obs        Mean    Std. Dev.       Min        Max
-------------+---------------------------------------------------------
backsurger~l |        307    3.010169    .9819918   1.081512   6.652228

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