| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 94 |
2.1%
|
| 2 | 12 years old | 238 |
5.4%
|
| 3 | 13 years old | 1222 |
27.5%
|
| 4 | 14 years old | 1467 |
33%
|
| 5 | 15 years old | 1268 |
28.5%
|
| 6 | 16 years old | 136 |
3.1%
|
| 7 | 17 years old or older | 19 |
0.4%
|
| Sysmiss | 60 |