5

18m 2 3

3-6m 6-9m 9-12m 12-18m 18-24m

4 5 10

4 5 6 8 12

7-8 9-10 11-12 13-14

5-6 7-8 9-10 11-12

9-10 11-12 13-14

5-6 11-12 13-14

9-10 11-12 13-14

3-6m 6-9m 9-12m 12-18m 18-24m

4 6 8 10

10 12

2 5

4

6

5