| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 52 |
4.6%
|
| 2 | 12 years old | 104 |
9.3%
|
| 3 | 13 years old | 255 |
22.7%
|
| 4 | 14 years old | 291 |
26%
|
| 5 | 15 years old | 255 |
22.7%
|
| 6 | 16 years old or older | 164 |
14.6%
|
| Sysmiss | 54 |