| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 18 |
0.3%
|
| 2 | 12 years old | 15 |
0.3%
|
| 3 | 13 years old | 519 |
10.1%
|
| 4 | 14 years old | 1669 |
32.4%
|
| 5 | 15 years old | 1669 |
32.4%
|
| 6 | 16 years old | 1154 |
22.4%
|
| 7 | 17 years old or older | 102 |
2%
|
| Sysmiss | 8 |