Frequencies for first 10,000 rows of sex variable in namcs2006 dataset :

patient sex |      Freq.     Percent        Cum.
------------+-----------------------------------
     female |      5,743       57.43       57.43
       male |      4,257       42.57      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016