Frequencies for first 10,000 rows of race variable in nhamcsed1996 dataset : patient race | Freq. Percent Cum. -----------------------------+----------------------------------- White | 6,819 68.19 68.19 Black | 2,885 28.85 97.04 Asian/Pacific Islander | 273 2.73 99.77 American Indian/Eskimo/Aleut | 23 0.23 100.00 -----------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016