| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 195 |
4.4%
|
| 2 | 12 years old | 649 |
14.8%
|
| 3 | 13 years old | 1362 |
31%
|
| 4 | 14 years old | 1192 |
27.1%
|
| 5 | 15 years old | 724 |
16.5%
|
| 6 | 16 years old | 216 |
4.9%
|
| 7 | 17 years old or older | 54 |
1.2%
|
| Sysmiss | 139 |