Frequencies for first 10,000 rows of sex variable in natl2015 dataset :

     Sex of |
   Infant M |
       Male |      Freq.     Percent        Cum.
------------+-----------------------------------
          F |      4,882       48.82       48.82
          M |      5,118       51.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Oct 2016