| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 4 |
0.2%
|
| 2 | 12 years old | 134 |
6.7%
|
| 3 | 13 years old | 589 |
29.4%
|
| 4 | 14 years old | 690 |
34.4%
|
| 5 | 15 years old | 538 |
26.9%
|
| 6 | 16 years old or older | 48 |
2.4%
|
| Sysmiss | 12 |