| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 3 |
0.1%
|
| 2 | 12 years old | 35 |
1.3%
|
| 3 | 13 years old | 544 |
20%
|
| 4 | 14 years old | 975 |
35.9%
|
| 5 | 15 years old | 1093 |
40.2%
|
| 6 | 16 years old or older | 69 |
2.5%
|
| Sysmiss | 91 |