Statistics Canada
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Average ratio of certain body measurements, by age

Average ratio of certain body measurements, by age
Age (years) Arm span / height Foot/forearm Hand/height
Girls Boys Girls Boys Girls Boys
  ratio
8 0.98 0.97 0.96 1.01 0.10 0.11
9 0.98 0.99 0.95 0.98 0.10 0.11
10 0.99 1.00 0.97 0.98 0.10 0.11
11 0.99 1.00 0.97 0.99 0.10 0.11
12 0.99 1.00 0.95 0.98 0.10 0.11
13 0.99 1.00 0.95 0.98 0.10 0.11
14 0.99 1.00 0.94 0.98 0.11 0.11
15 0.99 1.00 0.93 0.96 0.11 0.11
16 0.99 1.00 0.93 0.95 0.11 0.11
17 0.99 1.00 0.93 0.96 0.11 0.11
18 0.99 1.00 0.95 0.95 0.11 0.11
19 0.97 1.01 0.88 0.95 0.10 0.11