Frequencies for first 10,000 rows of mracerec variable in natlterr2011 dataset :

   Mother's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,176       41.76       41.76
          2 |        521        5.21       46.97
          3 |          6        0.06       47.03
          4 |      5,297       52.97      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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