| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 12 |
0.6%
|
| 2 | 12 years old | 10 |
0.5%
|
| 3 | 13 years old | 101 |
5.4%
|
| 4 | 14 years old | 408 |
21.8%
|
| 5 | 15 years old | 327 |
17.5%
|
| 6 | 16 years old | 362 |
19.4%
|
| 7 | 17 years old | 366 |
19.6%
|
| 8 | 18 years old or older | 284 |
15.2%
|
| Sysmiss | 5 |