V, ml

L, cm

S, cm²

40 (n = 58)

29.0 ± 1.3

1.34 ± 0.06

30 (n = 29)

24.4 ± 1.8

1.2 ± 0.09

25 (n = 16)

21.4 ± 1.8

1.19 ± 0.19

20 (n = 9)

19.3 + 1.7

1.04 ± 0.09

15 (n = 12)

17.9 ± 4.0

0.87 ± 0.2

12.5 (n = 6)

12.2 ± 2.4

0.85 ± 0.2

10 (n = 12)

13.8 ± 1.5

0.95 ± 0.3

7.5 (n = 5)

13.3 ± 0.34

0.68 ± 0.01

6.5 (n = 5)

10.8 ± 0.09

0.61 ± 0.01

5 (n = 9)

11.9 ± 1.7

0.42 ± 0.67

4.5 (n = 5)

8.7 ± 1.9

0.53 ± 0.13