| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 61 |
5%
|
| 2 | 12 years old | 90 |
7.4%
|
| 3 | 13 years old | 145 |
11.9%
|
| 4 | 14 years old | 255 |
20.9%
|
| 5 | 15 years old | 293 |
24%
|
| 6 | 16 years old | 243 |
19.9%
|
| 7 | 17 years old or older | 136 |
11.1%
|
| Sysmiss | 20 |