| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 19 |
1%
|
| 2 | 12 years old | 33 |
1.7%
|
| 3 | 13 years old | 120 |
6.1%
|
| 4 | 14 years old | 273 |
13.8%
|
| 5 | 15 years old | 357 |
18%
|
| 6 | 16 years old | 429 |
21.7%
|
| 7 | 17 years old | 342 |
17.3%
|
| 8 | 18 years or older | 405 |
20.5%
|
| Sysmiss | 17 |