| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 23 |
0.9%
|
| 2 | 12 years old | 253 |
9.6%
|
| 3 | 13 years old | 715 |
27.1%
|
| 4 | 14 years old | 784 |
29.7%
|
| 5 | 15 years old | 749 |
28.4%
|
| 6 | 16 years old or older | 112 |
4.2%
|
| Sysmiss | 41 |