Frequencies for first 10,000 rows of csex variable in natlterr2002 dataset : Sex | Freq. Percent Cum. ------------+----------------------------------- 1 | 5,180 51.80 51.80 2 | 4,820 48.20 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Dec 2015