Frequencies for first 10,000 rows of csex variable in natl1991 dataset :

        Sex |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,074       50.74       50.74
          2 |      4,926       49.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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