Age

P1

P11

P12

P13

7.5

13.0

13.1

10.7

13.8

8.5

20.6

18.3

21.0

15.6

9.5

26.3

22.5

31.5

21.6

10.5

30.6

29.2

35.1

25.3

11.5

40.3

38.8

49.1

30.6

Total

21.2

19.2

22.9

19.0