Frequencies for first 10,000 rows of crace variable in natl1969 dataset :

    Race of |
      Child |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,720       67.20       67.20
          2 |      3,201       32.01       99.21
          3 |          3        0.03       99.24
          4 |          1        0.01       99.25
          5 |          2        0.02       99.27
          6 |          3        0.03       99.30
          7 |         50        0.50       99.80
          8 |         20        0.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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