Importance of conserving energy, by age

Age (years)	Girls	Boys	All students
	average score on 1,000
8	751	772	762
9	773	726	749
10	758	712	734
11	736	709	723
12	722	682	702
13	704	639	672
14	641	578	611
15	609	530	571
16	613	562	587
17	641	577	610
18	656	583	614
19	661	767	725
Source: Statistics Canada, Census at School, 2008/2009.