Table 2

Current and lifetime smoking prevalence by grade, 2003–2004 and 2005–2006

Grade	No	Current smoking prevalence^*		Lifetime smoking prevalence^†
		2003–2004	2005–2006	2003–2004	2005–2006
		% (95% CI)	% (95% CI)	% (95% CI)	% (95% CI)
9	3839	7.6% (6.2 to 8.9)	10.6% (9.3 to 11.8)	30.2% (27.8 to 32.7)	29.9% (28.1 to 31.8)
10	4827	11.6% (10.2 to 13.0)	14.2% (12.9 to 15.5)	38.2% (36.1 to 40.3)	40.2% (38.3 to 42.0)
11	3930	14.6% (12.7 to 16.6)	16.6% (15.2 to 18.0)	43.4% (40.7 to 46.2)	44.2% (42.3 to 46.1)
12	4237	17.7% (15.6 to 19.7)	20.0% (18.5 to 21.5)	52.9% (50.2 to 55.6)	49.4% (47.5 to 51.2)
Total	16 833	12.8% (12.0 to 13.7)	15.4% (14.7 to 16.0)	41.2% (39.9 to 42.4)	40.9% (40.0 to 41.9)

The number of students represents an aggregate of students over two survey cycles: 2003–2004+2005–2006.
↵* Current smoking: Smoking in the last 30 days.
↵† Lifetime smoking: Ever smoked cigarettes, even one or two puffs.