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

   Pap test |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,590       95.90       95.90
        Yes |        410        4.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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