| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 128 |
2.6%
|
| 2 | 12 years old | 361 |
7.4%
|
| 3 | 13 years old | 1181 |
24.3%
|
| 4 | 14 years old | 1494 |
30.7%
|
| 5 | 15 years old | 1166 |
24%
|
| 6 | 16 years old | 434 |
8.9%
|
| 7 | 17 years old or older | 103 |
2.1%
|
| Sysmiss | 99 |