| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 74 |
2.3%
|
| 2 | 12 years old | 65 |
2%
|
| 3 | 13 years old | 272 |
8.4%
|
| 4 | 14 years old | 981 |
30.4%
|
| 5 | 15 years old | 1041 |
32.3%
|
| 6 | 16 years old | 746 |
23.1%
|
| 7 | 17 years old or older | 48 |
1.5%
|
| Sysmiss | 55 |