| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 100 |
6.1%
|
| 2 | 12 years old | 225 |
13.7%
|
| 3 | 13 years old | 364 |
22.1%
|
| 4 | 14 years old | 370 |
22.5%
|
| 5 | 15 years old | 271 |
16.5%
|
| 6 | 16 years old | 183 |
11.1%
|
| 7 | 17 years old or older | 131 |
8%
|
| Sysmiss | 120 |