| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 13 |
0.7%
|
| 2 | 12 years old | 42 |
2.2%
|
| 3 | 13 years old | 313 |
16.5%
|
| 4 | 14 years old | 684 |
36%
|
| 5 | 15 years old | 537 |
28.3%
|
| 6 | 16 years old or older | 311 |
16.4%
|
| Sysmiss | 25 |