| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 9 |
0.4%
|
| 2 | 12 years old | 123 |
4.8%
|
| 3 | 13 years old | 669 |
26%
|
| 4 | 14 years old | 846 |
32.9%
|
| 5 | 15 years old | 664 |
25.8%
|
| 6 | 16 years old or older | 259 |
10.1%
|
| Sysmiss | 11 |