| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 148 |
9.1%
|
| 2 | 12 years old | 138 |
8.5%
|
| 3 | 13 years old | 218 |
13.4%
|
| 4 | 14 years old | 223 |
13.7%
|
| 5 | 15 years old | 248 |
15.3%
|
| 6 | 16 years old | 286 |
17.6%
|
| 7 | 17 years old or older | 365 |
22.4%
|
| Sysmiss | 88 |