Frequencies for first 10,000 rows of mracerec variable in natl2005 dataset :

   Mother's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,243       62.43       62.43
          2 |        396        3.96       66.39
          3 |      2,609       26.09       92.48
          4 |        752        7.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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