| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 18 |
0.4%
|
| 2 | 12 years old | 709 |
16.7%
|
| 3 | 13 years old | 1382 |
32.6%
|
| 4 | 14 years old | 1378 |
32.6%
|
| 5 | 15 years old | 677 |
16%
|
| 6 | 16 years old | 56 |
1.3%
|
| 7 | 17 years old or older | 13 |
0.3%
|
| Sysmiss | 2 |