Frequencies for first 10,000 rows of mrace variable in natl1983 dataset :

    Race of |
     Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         41        0.41        0.41
          1 |      6,445       64.45       64.86
          2 |      3,494       34.94       99.80
          3 |          7        0.07       99.87
          4 |          6        0.06       99.93
          5 |          2        0.02       99.95
          8 |          5        0.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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