Frequencies for first 10,000 rows of mrace variable in natl1991 dataset :

    Race of |
     Mother |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,676       66.76       66.76
          2 |      3,251       32.51       99.27
          3 |         14        0.14       99.41
          4 |         10        0.10       99.51
          5 |          4        0.04       99.55
          7 |          5        0.05       99.60
          8 |         38        0.38       99.98
          9 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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