Frequencies for first 10,000 rows of fracerec variable in natlterr2003 dataset :

   Father's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          6        0.06        0.06
          1 |      8,480       84.80       84.86
          2 |      1,128       11.28       96.14
          9 |        386        3.86      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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