| Value | Category | Cases | |
|---|---|---|---|
| 1 | 12 years old | 49 |
2.7%
|
| 2 | 13 years old | 360 |
20%
|
| 3 | 14 years old | 439 |
24.4%
|
| 4 | 15 years old | 432 |
24%
|
| 5 | 16 years old | 302 |
16.8%
|
| 6 | 17 years old or older | 217 |
12.1%
|
| Sysmiss | 2 |