Frequencies for first 10,000 rows of mrace variable in natl2003 dataset :

   Mother's |
     Race U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,412       64.12       64.12
          2 |        408        4.08       68.20
          3 |      2,473       24.73       92.93
          4 |          9        0.09       93.02
          5 |         16        0.16       93.18
          6 |         22        0.22       93.40
          7 |        314        3.14       96.54
         78 |        346        3.46      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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