Frequencies for first 10,000 rows of race variable in usrace19ages dataset :

                                 Race |      Freq.     Percent        Cum.
--------------------------------------+-----------------------------------
                                White |      3,988       39.88       39.88
                                Black |      3,199       31.99       71.87
American Indian/Alaska Native (1990+) |      1,497       14.97       86.84
    Asian or Pacific Islander (1990+) |      1,316       13.16      100.00
--------------------------------------+-----------------------------------
                                Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 2 Jan 2018