Frequencies for first 10,000 rows of sex variable in namcs2015 dataset :

Patient sex |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,623       56.23       56.23
          2 |      4,377       43.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017