| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 2 |
0.1%
|
| 2 | 12 years old | 4 |
0.2%
|
| 3 | 13 years old | 123 |
5.1%
|
| 4 | 14 years old | 768 |
31.5%
|
| 5 | 15 years old | 953 |
39.1%
|
| 6 | 16 years old or older | 585 |
24%
|
| Sysmiss | 22 |