| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 17 |
1%
|
| 2 | 12 years old | 340 |
19.8%
|
| 3 | 13 years old | 510 |
29.7%
|
| 4 | 14 years old | 568 |
33.1%
|
| 5 | 15 years old | 228 |
13.3%
|
| 6 | 16 years old | 50 |
2.9%
|
| 7 | 17 years old or older | 5 |
0.3%
|