Frequencies for first 10,000 rows of frace variable in natl2004 dataset :

   Father's |
     Race U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,022       60.22       60.22
          2 |        482        4.82       65.04
          3 |      1,489       14.89       79.93
          4 |         13        0.13       80.06
          5 |         16        0.16       80.22
          6 |         29        0.29       80.51
          7 |        210        2.10       82.61
         78 |        307        3.07       85.68
         99 |      1,432       14.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 21 Jan 2016