| Value | Category | Cases | |
|---|---|---|---|
| 1 | 12 years old | 14 |
1.3%
|
| 2 | 13 years old | 96 |
9.2%
|
| 3 | 14 years old | 188 |
18%
|
| 4 | 15 years old | 209 |
20%
|
| 5 | 16 years old | 184 |
17.6%
|
| 6 | 17 years old or older | 354 |
33.9%
|
| Sysmiss | 2 |