Frequencies for first 10,000 rows of vaginal variable in natl2000 dataset :

    Vaginal |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,429       74.29       74.29
          2 |      2,531       25.31       99.60
          9 |         40        0.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015