| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 84 |
4.2%
|
| 2 | 12 years old | 61 |
3%
|
| 3 | 13 years old | 297 |
14.7%
|
| 4 | 14 years old | 518 |
25.7%
|
| 5 | 15 years old | 610 |
30.2%
|
| 6 | 16 years old | 291 |
14.4%
|
| 7 | 17 years old or older | 158 |
7.8%
|
| Sysmiss | 20 |