| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 9 |
0.5%
|
| 2 | 12 years old | 150 |
7.9%
|
| 3 | 13 years old | 503 |
26.5%
|
| 4 | 14 years old | 701 |
37%
|
| 5 | 15 years old | 479 |
25.3%
|
| 6 | 16 years old or older | 54 |
2.8%
|
| Sysmiss | 12 |