Frequencies for first 10,000 rows of racebx variable in h84 dataset :

BLACK AMONG |
 RACES RPTD |
(EDITED/IMP |
      UTED) |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,816       18.16       18.16
          2 |         91        0.91       19.07
          3 |      8,093       80.93      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Feb 2018