| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 67 |
2.7%
|
| 2 | 12 years old | 156 |
6.2%
|
| 3 | 13 years old | 253 |
10.1%
|
| 4 | 14 years old | 394 |
15.7%
|
| 5 | 15 years old | 701 |
28%
|
| 6 | 16 years old or older | 936 |
37.3%
|
| Sysmiss | 41 |