Table 4. Observable dependence on minimum age for dyads.

Lengths in millimetres, times in seconds.

Minimum age	$N_g^k$	V	r	x	y
0-9 years	31	1143 ± 42 (σ = 235)	995 ± 69 (σ = 383)	529 ± 34 (σ = 189)	701 ± 87 (σ = 485)
10-19 years	63	1158 ± 33 (σ = 259)	791 ± 33 (σ = 259)	624 ± 19 (σ = 148)	359 ± 40 (σ = 320)
20-29 years	364	1181 ± 9.1 (σ = 173)	793 ± 11 (σ = 218)	668 ± 8.1 (σ = 154)	307 ± 14 (σ = 264)
30-39 years	292	1204 ± 12 (σ = 202)	836 ± 14 (σ = 238)	673 ± 10 (σ = 176)	364 ± 18 (σ = 307)
40-49 years	149	1181 ± 14 (σ = 176)	841 ± 18 (σ = 224)	664 ± 13 (σ = 158)	384 ± 26 (σ = 311)
50-59 years	111	1164 ± 18 (σ = 193)	825 ± 21 (σ = 219)	649 ± 15 (σ = 160)	378 ± 30 (σ = 318)
60-69 years	67	1028 ± 21 (σ = 170)	881 ± 41 (σ = 335)	638 ± 20 (σ = 164)	468 ± 52 (σ = 422)
≥ 70 years	12	886 ± 29 (σ = 99.8)	786 ± 79 (σ = 275)	588 ± 19 (σ = 66.6)	385 ± 100 (σ = 363)
F7,1081		10.7	3.96	4.23	8.02
p		< 10−8	0.000282	0.000128	< 10−8
R2		0.065	0.025	0.0267	0.0494
δ		1.6	0.583	0.808	1.37