| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 1 |
0.1%
|
| 2 | 12 years old | 1 |
0.1%
|
| 3 | 13 years old | 193 |
12.5%
|
| 4 | 14 years old | 361 |
23.3%
|
| 5 | 15 years old | 358 |
23.1%
|
| 6 | 16 years old | 288 |
18.6%
|
| 7 | 17 years old | 227 |
14.7%
|
| 8 | 18 years old or older | 120 |
7.7%
|
| Sysmiss | 6 |