Frequencies for first 10,000 rows of crace variable in natl1976 dataset :

    Race of |
      Child |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,444       64.44       64.44
          2 |      3,524       35.24       99.68
          3 |          1        0.01       99.69
          4 |          3        0.03       99.72
          6 |          2        0.02       99.74
          7 |         25        0.25       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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