| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 17 |
0.3%
|
| 2 | 12 years old | 48 |
0.8%
|
| 3 | 13 years old | 849 |
15%
|
| 4 | 14 years old | 2144 |
37.9%
|
| 5 | 15 years old | 1690 |
29.9%
|
| 6 | 16 years old | 876 |
15.5%
|
| 7 | 17 years old or older | 29 |
0.5%
|
| Sysmiss | 10 |