| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 42 |
1.7%
|
| 2 | 12 years old | 543 |
21.4%
|
| 3 | 13 years old | 563 |
22.2%
|
| 4 | 14 years old | 473 |
18.6%
|
| 5 | 15 years old | 482 |
19%
|
| 6 | 16 years old | 409 |
16.1%
|
| 7 | 17 years old | 26 |
1%
|
| 8 | 18 years old or older | 0 |
0%
|
| Sysmiss | 2 |