Frequencies for first 10,000 rows of crace variable in natl1973 dataset : Race of | Child | Freq. Percent Cum. ------------+----------------------------------- 1 | 6,590 65.90 65.90 2 | 3,390 33.90 99.80 3 | 2 0.02 99.82 4 | 2 0.02 99.84 5 | 1 0.01 99.85 7 | 14 0.14 99.99 8 | 1 0.01 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 3 Jan 2016