| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 536 |
19%
|
| 2 | 12 years old | 676 |
24%
|
| 3 | 13 years old | 772 |
27.4%
|
| 4 | 14 years old | 550 |
19.5%
|
| 5 | 15 years old | 200 |
7.1%
|
| 6 | 16 years old | 58 |
2.1%
|
| 7 | 17 years old or older | 23 |
0.8%
|
| Sysmiss | 48 |