Frequencies for first 10,000 rows of hivtr variable in nhamcsopd1994 dataset :

        hiv |
transmissio |
          n |
 couns/educ |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,823       98.23       98.23
          1 |        177        1.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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