| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 2 |
0.1%
|
| 2 | 12 years old | 36 |
2.4%
|
| 3 | 13 years old | 413 |
27.2%
|
| 4 | 14 years old | 501 |
33%
|
| 5 | 15 years old | 418 |
27.6%
|
| 6 | 16 years old | 140 |
9.2%
|
| 7 | 17 years old or older | 6 |
0.4%
|
| Sysmiss | 2 |