| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 4 |
0.4%
|
| 2 | 12 years old | 2 |
0.2%
|
| 3 | 13 years old | 198 |
20.8%
|
| 4 | 14 years old | 291 |
30.6%
|
| 5 | 15 years old | 265 |
27.9%
|
| 6 | 16 years old or older | 190 |
20%
|
| Sysmiss | 7 |