| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 110 |
6.9%
|
| 2 | 12 years old | 137 |
8.6%
|
| 3 | 13 years old | 383 |
24.1%
|
| 4 | 14 years old | 439 |
27.7%
|
| 5 | 15 years old | 397 |
25%
|
| 6 | 16 years old | 96 |
6%
|
| 7 | 17 years old or older | 25 |
1.6%
|
| Sysmiss | 50 |