| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 8 |
0.4%
|
| 2 | 12 years old | 179 |
8.4%
|
| 3 | 13 years old | 712 |
33.6%
|
| 4 | 14 years old | 869 |
41%
|
| 5 | 15 years old | 318 |
15%
|
| 6 | 16 years old | 31 |
1.5%
|
| 7 | 17 years old or older | 2 |
0.1%
|
| Sysmiss | 1 |