| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 86 |
4.3%
|
| 2 | 12 years old | 141 |
7.1%
|
| 3 | 13 years old | 239 |
12%
|
| 4 | 14 years old | 301 |
15.2%
|
| 5 | 15 years old | 361 |
18.2%
|
| 6 | 16 years old | 488 |
24.6%
|
| 7 | 17 years old or older | 368 |
18.5%
|
| Sysmiss | 77 |