| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 18 |
1.1%
|
| 2 | 12 years old | 6 |
0.4%
|
| 3 | 13 years old | 116 |
6.9%
|
| 4 | 14 years old | 399 |
23.9%
|
| 5 | 15 years old | 477 |
28.5%
|
| 6 | 16 years old or older | 656 |
39.2%
|
| Sysmiss | 39 |