| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 102 |
6.3%
|
| 2 | 12 years old | 139 |
8.6%
|
| 3 | 13 years old | 243 |
15%
|
| 4 | 14 years old | 333 |
20.6%
|
| 5 | 15 years old | 314 |
19.4%
|
| 6 | 16 years old | 237 |
14.7%
|
| 7 | 17 years old or older | 247 |
15.3%
|
| Sysmiss | 42 |