Frequencies for first 10,000 rows of race variable in nhamcsopd1996 dataset :

                patient race |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                       White |      6,132       61.32       61.32
                       Black |      3,542       35.42       96.74
      Asian/Pacific Islander |        311        3.11       99.85
American Indian/Eskimo/Aleut |         15        0.15      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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