| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 92 |
2.1%
|
| 2 | 12 years old | 210 |
4.9%
|
| 3 | 13 years old | 846 |
19.6%
|
| 4 | 14 years old | 1263 |
29.2%
|
| 5 | 15 years old | 1125 |
26%
|
| 6 | 16 years old | 583 |
13.5%
|
| 7 | 17 years old or older | 208 |
4.8%
|
| Sysmiss | 34 |