Frequencies for first 10,000 rows of csex variable in linkco1991us_num dataset :

        Sex |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,630       56.30       56.30
          2 |      4,370       43.70      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015