Frequencies for first 10,000 rows of mracerec variable in natlterr2009 dataset :

   Mother's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,735       67.35       67.35
          2 |        830        8.30       75.65
          3 |          1        0.01       75.66
          4 |      2,434       24.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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