Frequencies for first 10,000 rows of race variable in nhamcsopd1995 dataset :

                patient race |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                       White |      6,449       64.49       64.49
                       Black |      3,268       32.68       97.17
      Asian/Pacific Islander |        266        2.66       99.83
American Indian/Eskimo/Aleut |         17        0.17      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016