| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 137 |
9.7%
|
| 2 | 12 years old | 202 |
14.3%
|
| 3 | 13 years old | 382 |
27%
|
| 4 | 14 years old | 329 |
23.2%
|
| 5 | 15 years old | 232 |
16.4%
|
| 6 | 16 years old | 95 |
6.7%
|
| 7 | 17 years old or older | 40 |
2.8%
|
| Sysmiss | 17 |