Frequencies for first 10,000 rows of fracerec variable in natlterr2010 dataset :

   Father's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,881       38.81       38.81
          2 |        592        5.92       44.73
          3 |          6        0.06       44.79
          4 |      3,906       39.06       83.85
          9 |      1,615       16.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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