Frequencies for first 10,000 rows of frace variable in natl1975 dataset :

    Race of |
     Father |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,304       63.04       63.04
          2 |      1,715       17.15       80.19
          3 |          3        0.03       80.22
          4 |          3        0.03       80.25
          5 |          2        0.02       80.27
          7 |          3        0.03       80.30
          8 |          2        0.02       80.32
          9 |      1,968       19.68      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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