Frequencies for first 10,000 rows of mrace variable in natl1996 dataset :

    Race of |
     Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,564       65.64       65.64
          2 |      3,328       33.28       98.92
          3 |         21        0.21       99.13
          4 |         22        0.22       99.35
          5 |          6        0.06       99.41
          7 |          4        0.04       99.45
         68 |         55        0.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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