Frequencies for first 10,000 rows of rectal variable in namcs2011 dataset :

Rectal exam |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,777       97.77       97.77
        Yes |        223        2.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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