Frequencies for first 10,000 rows of mrace variable in natlterr2003 dataset :

   Mother's |
    Race U  |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          8        0.08        0.08
          1 |      8,971       89.71       89.79
          2 |      1,021       10.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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