Frequencies for first 10,000 rows of race variable in nhamcsed1993 dataset : patient race | Freq. Percent Cum. -----------------------------+----------------------------------- White | 6,569 65.69 65.69 Black | 3,227 32.27 97.96 Asian/Pacific Islander | 172 1.72 99.68 American Indian/Eskimo/Aleut | 32 0.32 100.00 -----------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016