| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 13 years old | 6 |
0.3%
|
| 2 | 13 years old | 691 |
31.2%
|
| 3 | 14 years old | 738 |
33.3%
|
| 4 | 15 years old | 680 |
30.7%
|
| 5 | more than 15 years old | 102 |
4.6%
|
| Sysmiss | 4 |