| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 341 |
5.9%
|
| 2 | 12 years old | 230 |
4%
|
| 3 | 13 years old | 456 |
7.9%
|
| 4 | 14 years old | 964 |
16.7%
|
| 5 | 15 years old | 1159 |
20.1%
|
| 6 | 16 years old | 1154 |
20%
|
| 7 | 17 years old or older | 1465 |
25.4%
|
| Sysmiss | 276 |