Frequencies for first 10,000 rows of sex variable in demo2013q2 dataset :

   Code for |
  patient's |
        sex |      Freq.     Percent        Cum.
------------+-----------------------------------
          F |      6,225       62.25       62.25
          M |      3,458       34.58       96.83
         NS |        317        3.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 6 Apr 2017