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

   Mother's |
    Bridged |
Race** R*** |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,719       67.19       67.19
          2 |        830        8.30       75.49
          5 |          1        0.01       75.50
          8 |          1        0.01       75.51
          . |      2,449       24.49      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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