Frequencies for first 10,000 rows of emt variable in nhamcsed2015 dataset : EMT | Freq. Percent Cum. ------------+----------------------------------- No | 9,400 94.00 94.00 Yes | 600 6.00 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 20 Nov 2017