Frequencies for first 10,000 rows of sex variable in person dataset :

        sex |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,481       64.81       64.81
          2 |      3,336       33.36       98.17
          8 |         18        0.18       98.35
          9 |        165        1.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016