Frequencies for first 10,000 rows of sex variable in usrace19agesadj dataset :

        Sex |      Freq.     Percent        Cum.
------------+-----------------------------------
       Male |      4,910       49.10       49.10
     Female |      5,090       50.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 2 Jan 2018