| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 86 |
6.3%
|
| 2 | 12 years old | 114 |
8.3%
|
| 3 | 13 years old | 167 |
12.2%
|
| 4 | 14 years old | 260 |
19%
|
| 5 | 15 years old | 271 |
19.8%
|
| 6 | 16 years old | 251 |
18.4%
|
| 7 | 17 years old or older | 217 |
15.9%
|
| Sysmiss | 20 |