| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 72 |
13.3%
|
| 2 | 12 years old | 76 |
14%
|
| 3 | 13 years old | 123 |
22.7%
|
| 4 | 14 years old | 147 |
27.1%
|
| 5 | 15 years old | 81 |
14.9%
|
| 6 | 16 years old | 31 |
5.7%
|
| 7 | 17 years old or older | 13 |
2.4%
|
| Sysmiss | 31 |