Frequencies for first 10,000 rows of excision variable in namcs2014 dataset :

Excision of |
     tissue |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,858       98.58       98.58
        Yes |        142        1.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017