| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 3 |
0.4%
|
| 2 | 12 years old | 3 |
0.4%
|
| 3 | 13 years old | 122 |
15%
|
| 4 | 14 years old | 237 |
29.1%
|
| 5 | 15 years old | 263 |
32.3%
|
| 6 | 16 years old or older | 187 |
22.9%
|
| Sysmiss | 8 |