Frequencies for first 10,000 rows of fracerec variable in natl2010 dataset :

   Father's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,899       58.99       58.99
          2 |        494        4.94       63.93
          3 |      1,515       15.15       79.08
          4 |        755        7.55       86.63
          9 |      1,337       13.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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