Frequencies for first 10,000 rows of fracerec variable in natlterr2011 dataset :

   Father's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,884       38.84       38.84
          2 |        661        6.61       45.45
          3 |          5        0.05       45.50
          4 |      3,636       36.36       81.86
          9 |      1,814       18.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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