Frequencies for first 10,000 rows of mrace variable in natl2008 dataset : Mother's | Race U | Freq. Percent Cum. ------------+----------------------------------- 1 | 6,714 67.14 67.14 2 | 3,125 31.25 98.39 3 | 30 0.30 98.69 4 | 15 0.15 98.84 5 | 7 0.07 98.91 6 | 1 0.01 98.92 7 | 10 0.10 99.02 78 | 98 0.98 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 3 May 2016