| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 44 |
1.2%
|
| 2 | 12 years old | 213 |
5.9%
|
| 3 | 13 years old | 689 |
19.1%
|
| 4 | 14 years old | 1068 |
29.5%
|
| 5 | 15 years old | 1001 |
27.7%
|
| 6 | 16 years old or older | 600 |
16.6%
|
| Sysmiss | 76 |