Frequencies for first 10,000 rows of mrace variable in natl2005 dataset :

   Mother's |
     Race U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,243       62.43       62.43
          2 |        396        3.96       66.39
          3 |      2,609       26.09       92.48
          4 |         20        0.20       92.68
          5 |         21        0.21       92.89
          6 |         43        0.43       93.32
          7 |        320        3.20       96.52
         78 |        348        3.48      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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