Frequencies for first 10,000 rows of skinadh variable in nhamcsed2015 dataset : Skin | adhesives | Freq. Percent Cum. ------------+----------------------------------- No | 9,913 99.13 99.13 Yes | 87 0.87 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 20 Nov 2017