Frequencies for first 10,000 rows of mrace variable in natl1993 dataset :

    Race of |
     Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,359       63.59       63.59
          2 |      3,561       35.61       99.20
          3 |         21        0.21       99.41
          4 |          9        0.09       99.50
          5 |          6        0.06       99.56
          6 |          1        0.01       99.57
          7 |          5        0.05       99.62
         78 |         38        0.38      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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