| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 14 |
0.7%
|
| 2 | 12 years old | 171 |
8.1%
|
| 3 | 13 years old | 629 |
29.9%
|
| 4 | 14 years old | 717 |
34%
|
| 5 | 15 years old | 505 |
24%
|
| 6 | 16 years old or older | 70 |
3.3%
|
| Sysmiss | 14 |