Frequencies for first 10,000 rows of mrace variable in natlterr2012 dataset :

   Mother's |
     Race U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          1        0.01        0.01
          8 |      1,162       11.62       11.63
          . |      8,837       88.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 5 May 2016