Frequencies for first 10,000 rows of hivtest variable in nhamcsed2014 dataset :

   HIV test |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,881       98.81       98.81
        Yes |        119        1.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017