Frequencies for first 10,000 rows of mentlhlt variable in nhamcsopd2002 dataset : mental | health/stre | ss | management | Freq. Percent Cum. ------------+----------------------------------- 0 | 9,695 96.95 96.95 1 | 305 3.05 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 28 Mar 2016