Frequencies for first 10,000 rows of mrace variable in natl1994 dataset :

    Race of |
     Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,409       64.09       64.09
          2 |      3,490       34.90       98.99
          3 |         13        0.13       99.12
          4 |         16        0.16       99.28
          5 |          5        0.05       99.33
          7 |          6        0.06       99.39
         78 |         61        0.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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