Frequencies for first 10,000 rows of frace variable in natl2003 dataset :

   Father's |
     Race U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,017       60.17       60.17
          2 |        509        5.09       65.26
          3 |      1,383       13.83       79.09
          4 |          9        0.09       79.18
          5 |         11        0.11       79.29
          6 |         35        0.35       79.64
          7 |        228        2.28       81.92
         78 |        279        2.79       84.71
         99 |      1,529       15.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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