| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 8 |
0.1%
|
| 2 | 12 years old | 224 |
4%
|
| 3 | 13 years old | 1439 |
25.4%
|
| 4 | 14 years old | 977 |
17.3%
|
| 5 | 15 years old | 1205 |
21.3%
|
| 6 | 16 years old | 649 |
11.5%
|
| 7 | 17 years old | 531 |
9.4%
|
| 8 | 18 years old or older | 624 |
11%
|
| Sysmiss | 4 |