| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 32 |
0.6%
|
| 2 | 12 years old | 105 |
1.9%
|
| 3 | 13 years old | 1441 |
25.5%
|
| 4 | 14 years old | 1543 |
27.3%
|
| 5 | 15 years old | 2132 |
37.7%
|
| 6 | 16 years old | 286 |
5.1%
|
| 7 | 17 years old or older | 116 |
2.1%
|
| Sysmiss | 9 |