Frequencies for first 10,000 rows of frace variable in natl1998 dataset :

    Race of |
     Father |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,718       57.18       57.18
          2 |      1,580       15.80       72.98
          3 |         11        0.11       73.09
          4 |         12        0.12       73.21
          6 |          2        0.02       73.23
         78 |         60        0.60       73.83
         99 |      2,617       26.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015