Frequencies for first 10,000 rows of frace variable in natl1973 dataset :

    Race of |
     Father |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,294       62.94       62.94
          2 |      1,837       18.37       81.31
          3 |          2        0.02       81.33
          4 |          2        0.02       81.35
          5 |          1        0.01       81.36
          7 |          4        0.04       81.40
          9 |      1,860       18.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016