| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 120 |
3%
|
| 2 | 12 years old | 226 |
5.6%
|
| 3 | 13 years old | 456 |
11.4%
|
| 4 | 14 years old | 806 |
20.1%
|
| 5 | 15 years old | 895 |
22.3%
|
| 6 | 16 years old | 843 |
21%
|
| 7 | 17 years old or older | 664 |
16.6%
|
| Sysmiss | 67 |