Frequencies for first 10,000 rows of mracerec variable in natlterr2010 dataset :

   Mother's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      4,098       40.98       40.98
          2 |        473        4.73       45.71
          3 |         10        0.10       45.81
          4 |      5,419       54.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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