| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 0 |
0%
|
| 2 | 12 years old | 4 |
0.1%
|
| 3 | 13 years old | 634 |
21.4%
|
| 4 | 14 years old | 706 |
23.8%
|
| 5 | 15 years old | 573 |
19.3%
|
| 6 | 16 years old | 541 |
18.2%
|
| 7 | 17 years old | 493 |
16.6%
|
| 8 | 18 years old or older | 14 |
0.5%
|
| Sysmiss | 2 |