-67%
12-13 years
-67%
15-16 years
-67%
13-14years
-86%
12-13 years
-69%
15-16 years
-79%
15-16 years
-87%
15-16 years
-69%
14-15 years
-82%
14-15 years
-82%
11-12 years
-71%
15-16 years
-71%
14-15 years
-73%
13-14years
-73%
12-13 years
-80%
11-12 years
-80%
15-16 years
-91%
13-14years
-91%
13-14years
-91%
14-15 years
-91%
14-15 years
-91%
14-15 years
-93%
12-14 years
-93%
7-8 years