Frequencies for first 10,000 rows of fracerec variable in natlterr2007 dataset :

   Father's |
Race Recode |
        U;R |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      3,584       35.84       35.84
          2 |        501        5.01       40.85
          3 |          7        0.07       40.92
          4 |      4,393       43.93       84.85
          9 |      1,515       15.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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