| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 32 |
2.3%
|
| 2 | 12 years old | 71 |
5.1%
|
| 3 | 13 years old | 244 |
17.7%
|
| 4 | 14 years old | 311 |
22.6%
|
| 5 | 15 years old | 278 |
20.2%
|
| 6 | 16 years old or older | 443 |
32.1%
|
| Sysmiss | 42 |