| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 100 |
2.6%
|
| 2 | 12 years old | 726 |
18.7%
|
| 3 | 13 years old | 1234 |
31.9%
|
| 4 | 14 years old | 1129 |
29.1%
|
| 5 | 15 years old | 619 |
16%
|
| 6 | 16 years old | 42 |
1.1%
|
| 7 | 17 years old or older | 24 |
0.6%
|
| Sysmiss | 17 |