| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 5 |
0.2%
|
| 2 | 12 years old | 239 |
7.8%
|
| 3 | 13 years old | 638 |
20.9%
|
| 4 | 14 years old | 701 |
22.9%
|
| 5 | 15 years old | 643 |
21%
|
| 6 | 16 years old | 585 |
19.1%
|
| 7 | 17 years old | 146 |
4.8%
|
| 8 | 18 years old or older | 101 |
3.3%
|
| Sysmiss | 1 |