| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 16 |
0.3%
|
| 2 | 12 years old | 157 |
3.1%
|
| 3 | 13 years old | 1553 |
30.9%
|
| 4 | 14 years old | 1712 |
34.1%
|
| 5 | 15 years old | 1508 |
30%
|
| 6 | 16 years old | 66 |
1.3%
|
| 7 | 17 years old or older | 14 |
0.3%
|
| Sysmiss | 5 |