Frequencies for first 10,000 rows of racer variable in nhamcsopd2007 dataset : race recode | (imputed) | Freq. Percent Cum. ------------+----------------------------------- white | 6,446 64.46 64.46 black | 2,952 29.52 93.98 other | 602 6.02 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016