| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 7 |
0.8%
|
| 2 | 12 years old | 199 |
21.8%
|
| 3 | 13 years old | 189 |
20.7%
|
| 4 | 14 years old | 163 |
17.9%
|
| 5 | 15 years old | 128 |
14.1%
|
| 6 | 16 years old or older | 225 |
24.7%
|
| Sysmiss | 32 |