| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 1 |
0.1%
|
| 2 | 12 years old | 16 |
1%
|
| 3 | 13 years old | 323 |
19.4%
|
| 4 | 14 years old | 603 |
36.2%
|
| 5 | 15 years old | 553 |
33.2%
|
| 6 | 16 years old or older | 168 |
10.1%
|
| Sysmiss | 9 |