| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 5 |
0.3%
|
| 2 | 12 years old | 89 |
4.8%
|
| 3 | 13 years old | 301 |
16.3%
|
| 4 | 14 years old | 447 |
24.2%
|
| 5 | 15 years old | 491 |
26.6%
|
| 6 | 16 years old or older | 513 |
27.8%
|
| Sysmiss | 19 |