| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 8 |
0.2%
|
| 2 | 12 years old | 4 |
0.1%
|
| 3 | 13 years old | 182 |
5%
|
| 4 | 14 years old | 478 |
13%
|
| 5 | 15 years old | 980 |
26.8%
|
| 6 | 16 years old | 898 |
24.5%
|
| 7 | 17 years old | 1079 |
29.5%
|
| 8 | 18 years old or older | 34 |
0.9%
|
| Sysmiss | 20 |