| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 13 years old | 14 |
0.7%
|
| 2 | 13 years old | 802 |
38.8%
|
| 3 | 14 years old | 749 |
36.3%
|
| 4 | 15 years old | 421 |
20.4%
|
| 5 | more than 15 years old | 79 |
3.8%
|
| Sysmiss | 15 |