| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 26 |
0.6%
|
| 2 | 12 years old | 288 |
7%
|
| 3 | 13 years old | 682 |
16.6%
|
| 4 | 14 years old | 661 |
16%
|
| 5 | 15 years old | 620 |
15.1%
|
| 6 | 16 years old | 609 |
14.8%
|
| 7 | 17 years old | 627 |
15.2%
|
| 8 | 18 years or older | 606 |
14.7%
|
| Sysmiss | 53 |