Frequencies for first 10,000 rows of mar_p variable in natlterr2015 dataset :

  Paternity |
Acknowledge |
    d Y Yes |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,078       10.78       10.78
          N |      1,248       12.48       23.26
          U |        116        1.16       24.42
          X |      3,241       32.41       56.83
          Y |      4,317       43.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Oct 2016