| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 29 |
1.8%
|
| 2 | 12 years old | 220 |
13.4%
|
| 3 | 13 years old | 408 |
24.9%
|
| 4 | 14 years old | 372 |
22.7%
|
| 5 | 15 years old | 401 |
24.5%
|
| 6 | 16 years old | 177 |
10.8%
|
| 7 | 17 years old or older | 31 |
1.9%
|