| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 126 |
19.6%
|
| 2 | 12 years old | 200 |
31.1%
|
| 3 | 13 years old | 190 |
29.5%
|
| 4 | 14 years old | 83 |
12.9%
|
| 5 | 15 years old | 29 |
4.5%
|
| 6 | 16 years old | 15 |
2.3%
|
| 7 | 17 years old or older | 0 |
0%
|
| Sysmiss | 39 |