Frequencies for first 10,000 rows of rectal variable in nhamcsopd2011 dataset :

Rectal exam |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,670       96.70       96.70
        Yes |        330        3.30      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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