Average ratio of certain body measurements, by age

Age (years)	Armspan/height		Foot/forearm		Hand/height

	Girls	Boys	Girls	Boys	Girls	Boys
	Average ratio
8	0.99	0.96	1.07	0.97	0,11	0,11
9	0.99	1.01	0.96	0.98	0,12	0,12
10	0.98	0.98	0.97	0.98	0,11	0,11
11	0.98	0.98	0.97	0.99	0,12	0,12
12	1.00	0.99	0.96	0.98	0,12	0,12
13	0.99	0.98	0.95	0.98	0,11	0,11
14	0.96	0.97	0.95	0.98	0,11	0,11
15	0.96	0.95	0.94	0.99	0,11	0,11
16	0.93	0.96	0.99	1.01	0,11	0,11
17	0.95	0.96	0.97	1.01	0,11	0,11
18	0.94	0.97	0.94	0.97	0,11	0,11
19	0.92	0.94	0.92	1.01	0,11	0,11
Notes: The ratio is the proportion between two numbers (for example, between the lengths of the foot and the forearm). The ratio is obtained by dividing the first element by the second. Source: Census at School – Canada, 2005/2006.