Frequencies for first 10,000 rows of fbrem variable in nhamcsed2007 dataset :

    foreign |
       body |
    removal |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,958       99.58       99.58
        yes |         42        0.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016