Frequencies for first 10,000 rows of mraceimp variable in natl2010 dataset : Mother's | Race | Imputed | Flag U;R | Freq. Percent Cum. ------------+----------------------------------- | 9,934 99.34 99.34 1 | 62 0.62 99.96 2 | 4 0.04 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015