| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 165 |
11.1%
|
| 2 | 12 years old | 203 |
13.7%
|
| 3 | 13 years old | 226 |
15.3%
|
| 4 | 14 years old | 237 |
16%
|
| 5 | 15 years old | 174 |
11.7%
|
| 6 | 16 years old | 217 |
14.7%
|
| 7 | 17 years old or older | 259 |
17.5%
|
| Sysmiss | 3 |