Frequencies for first 10,000 rows of ethnicfl variable in nhamcsopd2006 dataset : ethnicity | imputed? | Freq. Percent Cum. ------------+----------------------------------- Not imputed | 8,504 85.04 85.04 Imputed | 1,496 14.96 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016