| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 52 |
1.4%
|
| 2 | 12 years old | 179 |
4.7%
|
| 3 | 13 years old | 943 |
25%
|
| 4 | 14 years old | 1252 |
33.2%
|
| 5 | 15 years old | 1155 |
30.6%
|
| 6 | 16 years old | 173 |
4.6%
|
| 7 | 17 years old or older | 16 |
0.4%
|
| Sysmiss | 29 |