| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 293 |
13.6%
|
| 2 | 12 years old | 540 |
25.1%
|
| 3 | 13 years old | 611 |
28.4%
|
| 4 | 14 years old | 380 |
17.6%
|
| 5 | 15 years old | 226 |
10.5%
|
| 6 | 16 years old or older | 104 |
4.8%
|
| Sysmiss | 22 |