| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 26 |
0.9%
|
| 2 | 12 years old | 408 |
14.2%
|
| 3 | 13 years old | 648 |
22.5%
|
| 4 | 14 years old | 764 |
26.5%
|
| 5 | 15 years old | 585 |
20.3%
|
| 6 | 16 years old or older | 447 |
15.5%
|
| Sysmiss | 46 |