| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 11 |
0.4%
|
| 2 | 12 years old | 244 |
8.7%
|
| 3 | 13 years old | 585 |
21%
|
| 4 | 14 years old | 628 |
22.5%
|
| 5 | 15 years old | 770 |
27.6%
|
| 6 | 16 years old or older | 551 |
19.8%
|
| Sysmiss | 17 |