| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 92 |
5.3%
|
| 2 | 12 years old | 154 |
8.9%
|
| 3 | 13 years old | 222 |
12.8%
|
| 4 | 14 years old | 276 |
15.9%
|
| 5 | 15 years old | 313 |
18%
|
| 6 | 16 years old | 274 |
15.8%
|
| 7 | 17 years old or older | 405 |
23.3%
|
| Sysmiss | 74 |