| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 118 |
3.8%
|
| 2 | 12 years old | 286 |
9.2%
|
| 3 | 13 years old | 641 |
20.7%
|
| 4 | 14 years old | 717 |
23.1%
|
| 5 | 15 years old | 650 |
21%
|
| 6 | 16 years old | 492 |
15.9%
|
| 7 | 17 years old or older | 197 |
6.4%
|
| Sysmiss | 46 |