Frequencies for chroniclungdisorders variable in snp2010 dataset : Chronic | Lung | Disorders | Freq. Percent Cum. ------------+----------------------------------- | 8,612 98.74 98.74 Yes | 110 1.26 100.00 ------------+----------------------------------- Total | 8,722 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016