Frequencies for sex variable in person dataset :

        sex |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        766       71.12       71.12
          2 |        256       23.77       94.89
          9 |         55        5.11      100.00
------------+-----------------------------------
      Total |      1,077      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016