Frequencies for first 10,000 rows of mracerec variable in natl2006 dataset :

   Mother's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,321       63.21       63.21
          2 |        385        3.85       67.06
          3 |      2,475       24.75       91.81
          4 |        819        8.19      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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