| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 49 |
2.4%
|
| 2 | 12 years old | 238 |
11.4%
|
| 3 | 13 years old | 414 |
19.9%
|
| 4 | 14 years old | 464 |
22.3%
|
| 5 | 15 years old | 524 |
25.2%
|
| 6 | 16 years old or older | 394 |
18.9%
|
| Sysmiss | 12 |