Average wrist circumference, by age

Age (years)	Girls	Boys

	mm
8	144.5	151.6
9	143.2	146.2
10	142.9	148.1
11	146.2	150.6
12	149.6	154.8
13	152.1	159.1
14	151.2	162.5
15	153.3	164.6
16	152.0	166.6
17	154.2	169.9
18	154.0	169.5
19	151.5	169.2
Source: Statistics Canada, Census at School, 2007/2008.