Frequencies for first 10,000 rows of iv_sex variable in mcbsatc2013 dataset :

     Gender |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,601       46.01       46.01
          2 |      5,399       53.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 24 May 2016