| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 2 |
0.2%
|
| 2 | 12 years old | 5 |
0.5%
|
| 3 | 13 years old | 149 |
16%
|
| 4 | 14 years old | 337 |
36.2%
|
| 5 | 15 years old | 415 |
44.6%
|
| 6 | 16 years old or older | 23 |
2.5%
|
| Sysmiss | 48 |