Frequencies for first 10,000 rows of mrace variable in natl2004 dataset :

   Mother's |
     Race U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,341       63.41       63.41
          2 |        386        3.86       67.27
          3 |      2,532       25.32       92.59
          4 |         17        0.17       92.76
          5 |         16        0.16       92.92
          6 |         35        0.35       93.27
          7 |        287        2.87       96.14
         78 |        386        3.86      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 21 Jan 2016