Frequencies for first 10,000 rows of frace variable in natl2005 dataset :

   Father's |
     Race U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,937       59.37       59.37
          2 |        484        4.84       64.21
          3 |      1,490       14.90       79.11
          4 |         14        0.14       79.25
          5 |          7        0.07       79.32
          6 |         44        0.44       79.76
          7 |        228        2.28       82.04
         78 |        301        3.01       85.05
         99 |      1,495       14.95      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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