| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 7 |
0.6%
|
| 2 | 12 years old | 2 |
0.2%
|
| 3 | 13 years old | 225 |
18.5%
|
| 4 | 14 years old | 369 |
30.3%
|
| 5 | 15 years old | 395 |
32.4%
|
| 6 | 16 years old or older | 220 |
18.1%
|
| Sysmiss | 16 |