| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 170 |
4.4%
|
| 2 | 12 years old | 135 |
3.5%
|
| 3 | 13 years old | 564 |
14.7%
|
| 4 | 14 years old | 1109 |
28.8%
|
| 5 | 15 years old | 963 |
25%
|
| 6 | 16 years old | 576 |
15%
|
| 7 | 17 years old or older | 330 |
8.6%
|
| Sysmiss | 88 |