Frequencies for first 10,000 rows of fbrace variable in natlterr2005 dataset :

   Father's |
    Bridged |
   Race R** |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          1        0.01        0.01
          1 |      3,244       32.44       32.45
          2 |        321        3.21       35.66
         99 |        179        1.79       37.45
          . |      6,255       62.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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