| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 8 |
0.2%
|
| 2 | 12 years | 157 |
4%
|
| 3 | 13 years old | 1218 |
31.2%
|
| 4 | 14 years old | 1166 |
29.9%
|
| 5 | 15 years old | 1164 |
29.8%
|
| 6 | 16 years old | 181 |
4.6%
|
| 7 | 17 years old or older | 9 |
0.2%
|
| Sysmiss | 2 |