| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 8 |
0.4%
|
| 2 | 12 years old | 210 |
10.4%
|
| 3 | 13 years old | 484 |
24%
|
| 4 | 14 years old | 518 |
25.7%
|
| 5 | 15 years old | 433 |
21.5%
|
| 6 | 16 years old or older | 360 |
17.9%
|
| Sysmiss | 18 |