| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 95 |
5.1%
|
| 2 | 12 years old | 219 |
11.6%
|
| 3 | 13 years old | 436 |
23.2%
|
| 4 | 14 years old | 414 |
22%
|
| 5 | 15 years old | 417 |
22.2%
|
| 6 | 16 years old | 247 |
13.1%
|
| 7 | 17 years old or older | 52 |
2.8%
|
| Sysmiss | 11 |