Frequencies for first 10,000 rows of fracerec variable in natlterr2006 dataset :

   Father's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          2        0.02        0.02
          1 |      3,573       35.73       35.75
          2 |        413        4.13       39.88
          3 |          6        0.06       39.94
          4 |      4,446       44.46       84.40
          9 |      1,560       15.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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