| Value | Category | Cases | |
|---|---|---|---|
| 1 | 12 years old | 29 |
1.8%
|
| 2 | 13 years old | 185 |
11.5%
|
| 3 | 14 years old | 306 |
19%
|
| 4 | 15 years old | 391 |
24.3%
|
| 5 | 16 years old | 273 |
17%
|
| 6 | 17 years old or older | 424 |
26.4%
|
| Sysmiss | 8 |