年龄(岁)

男

女

5.0

18.1

18.6

5.5

18.1

18.7

6.0

17.7

17.5

6.5

18.1

18.0

7.0

18.7

18.5

7.5

19.2

19.0

8.0

19.7

19.4

8.5

20.3

19.9

9.0

20.8

20.4

9.5

21.4

21.0

10.0

21.9

21.5

10.5

22.5

22.1

11.0

23.0

22.7

11.5

23.6

23.3

12.0

24.1

23.9

12.5

24.7

24.5

13.0

25.2

25.0