| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 206 |
7.4%
|
| 2 | 12 years old | 211 |
7.6%
|
| 3 | 13 years old | 260 |
9.3%
|
| 4 | 14 years old | 387 |
13.9%
|
| 5 | 15 years old | 524 |
18.8%
|
| 6 | 16 years old | 525 |
18.8%
|
| 7 | 17 years old or older | 677 |
24.3%
|
| Sysmiss | 141 |