| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 48 |
0.1%
|
| 2 | 12 years old | 145 |
0.3%
|
| 3 | 13 years old | 10574 |
18.6%
|
| 4 | 14 years old | 12946 |
22.8%
|
| 5 | 15 years old | 12812 |
22.5%
|
| 6 | 16 years old | 11738 |
20.6%
|
| 7 | 17 years old | 8227 |
14.5%
|
| 8 | 18 years old or older | 383 |
0.7%
|
| Sysmiss | 108 |