Frequencies for first 10,000 rows of apiflag variable in natl1994 dataset : Race codes | 18-68 | reported | (beginning | with 1992 | data) | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,999 99.99 99.99 1 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015