| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 21 |
1.2%
|
| 2 | 12 years old | 174 |
10%
|
| 3 | 13 years old | 421 |
24.3%
|
| 4 | 14 years old | 468 |
27%
|
| 5 | 15 years old | 366 |
21.1%
|
| 6 | 16 years old or older | 283 |
16.3%
|
| Sysmiss | 4 |