| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 21 |
0.9%
|
| 2 | 12 years old | 214 |
8.9%
|
| 3 | 13 years old | 457 |
19%
|
| 4 | 14 years old | 439 |
18.3%
|
| 5 | 15 years old | 415 |
17.3%
|
| 6 | 16 years old | 473 |
19.7%
|
| 7 | 17 years old | 304 |
12.7%
|
| 8 | 18 years old or older | 77 |
3.2%
|