Class,Smoke,Both,PrOnly,HyOnly,Neither,Total
1,1,28,82,21,286,417
1,2,5,24,5,71,105
1,3,1,3,0,13,17
2,1,50,266,34,785,1135
2,2,13,92,17,284,406
2,3,0,15,3,34,52
3,1,278,1101,164,3160,4703
3,2,120,492,142,2300,3054
3,3,16,92,32,383,523
4,1,63,213,52,656,984
4,2,35,129,46,649,859
4,3,7,40,12,163,222
5,1,20,78,23,245,366
5,2,22,74,34,321,451
5,3,7,14,4,65,90