| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 125 |
3.1%
|
| 2 | 12 years old | 181 |
4.5%
|
| 3 | 13 years old | 601 |
14.9%
|
| 4 | 14 years old | 1090 |
26.9%
|
| 5 | 15 years old | 1140 |
28.2%
|
| 6 | 16 years old | 615 |
15.2%
|
| 7 | 17 years old or older | 294 |
7.3%
|
| Sysmiss | 231 |