| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 13 |
0.6%
|
| 2 | 12 years old | 229 |
11%
|
| 3 | 13 years old | 548 |
26.3%
|
| 4 | 14 years old | 541 |
25.9%
|
| 5 | 15 years old | 421 |
20.2%
|
| 6 | 16 years old or older | 333 |
16%
|
| Sysmiss | 8 |