Frequencies for first 10,000 rows of mracerec variable in natlterr2007 dataset :

   Mother's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,727       37.27       37.27
          2 |        434        4.34       41.61
          3 |          7        0.07       41.68
          4 |      5,832       58.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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