Frequencies for hivaids variable in snp2012 dataset :

   HIV/AIDS |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,368       99.91       99.91
          * |          7        0.09      100.00
------------+-----------------------------------
      Total |      7,375      100.00

by Jean Roth , jroth@nber.org , 14 Apr 2016