| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 183 |
8.3%
|
| 2 | 12 years old | 201 |
9.1%
|
| 3 | 13 years old | 249 |
11.3%
|
| 4 | 14 years old | 305 |
13.9%
|
| 5 | 15 years old | 338 |
15.4%
|
| 6 | 16 years old | 418 |
19%
|
| 7 | 17 years old or older | 505 |
23%
|
| Sysmiss | 21 |