| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 201 |
5.3%
|
| 2 | 12 years old | 328 |
8.7%
|
| 3 | 13 years old | 505 |
13.4%
|
| 4 | 14 years old | 600 |
15.9%
|
| 5 | 15 years old | 621 |
16.5%
|
| 6 | 16 years old | 645 |
17.1%
|
| 7 | 17 years old or older | 866 |
23%
|
| Sysmiss | 224 |