Frequencies for first 10,000 rows of mbrace variable in natlterr2010 dataset :

   Mother's |
    Bridged |
Race** R*** |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,849       38.49       38.49
          2 |        436        4.36       42.85
          4 |          2        0.02       42.87
          5 |        130        1.30       44.17
          6 |        323        3.23       47.40
          7 |         23        0.23       47.63
          8 |         56        0.56       48.19
         10 |          8        0.08       48.27
         12 |        314        3.14       51.41
         14 |        186        1.86       53.27
         24 |         17        0.17       53.44
          . |      4,656       46.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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