| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 10 |
0.5%
|
| 2 | 12 years old | 79 |
3.7%
|
| 3 | 13 years old | 564 |
26.5%
|
| 4 | 14 years old | 634 |
29.8%
|
| 5 | 15 years old | 522 |
24.5%
|
| 6 | 16 years old or older | 322 |
15.1%
|
| Sysmiss | 28 |