| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 31 |
3.6%
|
| 2 | 12 years old | 41 |
4.8%
|
| 3 | 13 years old | 131 |
15.3%
|
| 4 | 14 years old | 205 |
24%
|
| 5 | 15 years old | 267 |
31.3%
|
| 6 | 16 years old | 139 |
16.3%
|
| 7 | 17 years old or older | 40 |
4.7%
|
| Sysmiss | 52 |