| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 3 |
0.1%
|
| 2 | 12 years old | 4 |
0.2%
|
| 3 | 13 years old | 689 |
29.5%
|
| 4 | 14 years old | 758 |
32.5%
|
| 5 | 15 years old | 622 |
26.7%
|
| 6 | 16 years old | 240 |
10.3%
|
| 7 | 17 years old or older | 17 |
0.7%
|
| Sysmiss | 1 |