| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 3 |
0.2%
|
| 2 | 12 years old | 39 |
2.1%
|
| 3 | 13 years old | 218 |
11.7%
|
| 4 | 14 years old | 269 |
14.4%
|
| 5 | 15 years old | 287 |
15.4%
|
| 6 | 16 years old | 268 |
14.4%
|
| 7 | 17 years old | 313 |
16.8%
|
| 8 | 18 years old or older | 469 |
25.1%
|
| Sysmiss | 4 |