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

   Father's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,017       60.17       60.17
          2 |        509        5.09       65.26
          3 |      1,383       13.83       79.09
          4 |        562        5.62       84.71
          9 |      1,529       15.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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