| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 3 |
0.2%
|
| 2 | 12 years old | 2 |
0.2%
|
| 3 | 13 years old | 173 |
13.8%
|
| 4 | 14 years old | 423 |
33.7%
|
| 5 | 15 years old | 351 |
28%
|
| 6 | 16 years old or older | 302 |
24.1%
|
| Sysmiss | 20 |