Frequencies for first 10,000 rows of mrace variable in natl1982 dataset :

    Race of |
     Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         37        0.37        0.37
          1 |      6,461       64.61       64.98
          2 |      3,485       34.85       99.83
          3 |          4        0.04       99.87
          4 |          5        0.05       99.92
          7 |          1        0.01       99.93
          8 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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