Frequencies for first 10,000 rows of fracerec variable in natl2013 dataset :

   Father's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,988       59.88       59.88
          2 |        551        5.51       65.39
          3 |      1,516       15.16       80.55
          4 |        742        7.42       87.97
          9 |      1,203       12.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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