| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 128 |
5.2%
|
| 2 | 12 years old | 83 |
3.4%
|
| 3 | 13 years old | 724 |
29.4%
|
| 4 | 14 years old | 839 |
34.1%
|
| 5 | 15 years old | 578 |
23.5%
|
| 6 | 16 years old | 98 |
4%
|
| 7 | 17 years old or older | 12 |
0.5%
|
| Sysmiss | 9 |