| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 261 |
5.2%
|
| 2 | 12 years old | 1045 |
20.9%
|
| 3 | 13 years old | 1185 |
23.7%
|
| 4 | 14 years old | 941 |
18.8%
|
| 5 | 15 years old | 979 |
19.6%
|
| 6 | 16 years old | 491 |
9.8%
|
| 7 | 17 years old or older | 103 |
2.1%
|
| Sysmiss | 193 |