| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 76 |
2%
|
| 2 | 12 years old | 261 |
7%
|
| 3 | 13 years old | 911 |
24.5%
|
| 4 | 14 years old | 1114 |
29.9%
|
| 5 | 15 years old | 866 |
23.3%
|
| 6 | 16 years old | 299 |
8%
|
| 7 | 17 years old or older | 194 |
5.2%
|
| Sysmiss | 44 |