Frequencies for first 10,000 rows of csex variable in natl1990 dataset :

        Sex |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,197       51.97       51.97
          2 |      4,803       48.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016