| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 15 |
1%
|
| 2 | 12 years old | 38 |
2.6%
|
| 3 | 13 years old | 222 |
15.2%
|
| 4 | 14 years old | 341 |
23.3%
|
| 5 | 15 years old | 353 |
24.1%
|
| 6 | 16 years old | 257 |
17.6%
|
| 7 | 17 years old | 148 |
10.1%
|
| 8 | 18 years old or older | 90 |
6.1%
|
| Sysmiss | 17 |