| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 422 |
12%
|
| 2 | 12 years old | 264 |
7.5%
|
| 3 | 13 years old | 291 |
8.3%
|
| 4 | 14 years old | 418 |
11.9%
|
| 5 | 15 years old | 596 |
17%
|
| 6 | 16 years old | 682 |
19.4%
|
| 7 | 17 years old or older | 840 |
23.9%
|
| Sysmiss | 135 |