Frequencies for first 10,000 rows of frace variable in natl1983 dataset : Race of | Father | Freq. Percent Cum. ------------+----------------------------------- 0 | 24 0.24 0.24 1 | 5,971 59.71 59.95 2 | 1,507 15.07 75.02 3 | 6 0.06 75.08 4 | 6 0.06 75.14 5 | 1 0.01 75.15 8 | 3 0.03 75.18 9 | 2,482 24.82 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 3 Jan 2016