Frequencies for first 10,000 rows of frace variable in natl1978 dataset :

    Race of |
     Father |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          7        0.07        0.07
          1 |      6,154       61.54       61.61
          2 |      1,646       16.46       78.07
          3 |          3        0.03       78.10
          4 |          2        0.02       78.12
          5 |          4        0.04       78.16
          7 |          1        0.01       78.17
          8 |          3        0.03       78.20
          9 |      2,180       21.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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