| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 7 |
0.5%
|
| 2 | 12 years old | 52 |
3.4%
|
| 3 | 13 years old | 366 |
24.2%
|
| 4 | 14 years old | 456 |
30.1%
|
| 5 | 15 years old | 556 |
36.7%
|
| 6 | 16 years old or older | 76 |
5%
|
| Sysmiss | 16 |