| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 187 |
5%
|
| 2 | 12 years old | 530 |
14.1%
|
| 3 | 13 years old | 663 |
17.7%
|
| 4 | 14 years old | 727 |
19.4%
|
| 5 | 15 years old | 716 |
19.1%
|
| 6 | 16 years old | 550 |
14.7%
|
| 7 | 17 years old or older | 374 |
10%
|
| Sysmiss | 37 |