Frequencies for first 10,000 rows of frace variable in natl1981 dataset :

    Race of |
     Father |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         21        0.21        0.21
          1 |      6,062       60.62       60.83
          2 |      1,613       16.13       76.96
          3 |          6        0.06       77.02
          4 |          3        0.03       77.05
          5 |          1        0.01       77.06
          6 |          1        0.01       77.07
          8 |          1        0.01       77.08
          9 |      2,292       22.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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