| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 75 |
2.9%
|
| 2 | 12 years old | 43 |
1.6%
|
| 3 | 13 years old | 254 |
9.7%
|
| 4 | 14 years old | 600 |
23%
|
| 5 | 15 years old | 727 |
27.9%
|
| 6 | 16 years old | 696 |
26.7%
|
| 7 | 17 years old or older | 212 |
8.1%
|
| Sysmiss | 19 |