Frequencies for hivaids variable in snp2011 dataset :

   HIV/AIDS |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,319       99.89       99.89
          * |          7        0.11      100.00
------------+-----------------------------------
      Total |      6,326      100.00

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