| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 8 |
0.5%
|
| 2 | 12 years old | 5 |
0.3%
|
| 3 | 13 years old | 207 |
12.3%
|
| 4 | 14 years old | 400 |
23.8%
|
| 5 | 15 years old | 424 |
25.2%
|
| 6 | 16 years old | 369 |
22%
|
| 7 | 17 years old or older | 268 |
15.9%
|
| Sysmiss | 4 |