| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 221 |
22.4%
|
| 2 | 12 years old | 261 |
26.5%
|
| 3 | 13 years old | 82 |
8.3%
|
| 4 | 14 years old | 151 |
15.3%
|
| 5 | 15 years old | 116 |
11.8%
|
| 6 | 16 years old | 95 |
9.6%
|
| 7 | 17 years old or older | 60 |
6.1%
|
| Sysmiss | 32 |