Frequencies for first 10,000 rows of mracerec variable in natl2011 dataset :

   Mother's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,172       61.72       61.72
          2 |        452        4.52       66.24
          3 |      2,478       24.78       91.02
          4 |        898        8.98      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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