| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 187 |
7%
|
| 2 | 12 years old | 449 |
16.8%
|
| 3 | 13 years old | 554 |
20.7%
|
| 4 | 14 years old | 682 |
25.5%
|
| 5 | 15 years old | 524 |
19.6%
|
| 6 | 16 years old | 214 |
8%
|
| 7 | 17 years old or older | 66 |
2.5%
|
| Sysmiss | 63 |