| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 170 |
5%
|
| 2 | 12 years old | 335 |
9.9%
|
| 3 | 13 years old | 509 |
15%
|
| 4 | 14 years old | 746 |
22%
|
| 5 | 15 years old | 771 |
22.7%
|
| 6 | 16 years old | 525 |
15.5%
|
| 7 | 17 years old or older | 340 |
10%
|
| Sysmiss | 54 |