| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 9 |
0.8%
|
| 2 | 12 years old | 190 |
17.6%
|
| 3 | 13 years old | 393 |
36.4%
|
| 4 | 14 years old | 312 |
28.9%
|
| 5 | 15 years old | 143 |
13.3%
|
| 6 | 16 years old or older | 32 |
3%
|
| Sysmiss | 2 |