| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 5 |
0.1%
|
| 2 | 12 years old | 268 |
6.8%
|
| 3 | 13 years old | 1185 |
30.2%
|
| 4 | 14 years old | 1274 |
32.5%
|
| 5 | 15 years old | 1062 |
27.1%
|
| 6 | 16 years old | 126 |
3.2%
|
| 7 | 17 years old or older | 5 |
0.1%
|
| Sysmiss | 1 |