| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 1 |
0.1%
|
| 2 | 12 years old | 26 |
1.8%
|
| 3 | 13 years old | 394 |
27.2%
|
| 4 | 14 years old | 472 |
32.6%
|
| 5 | 15 years old | 385 |
26.6%
|
| 6 | 16 years old | 135 |
9.3%
|
| 7 | 17 years old or older | 37 |
2.6%
|
| Sysmiss | 3 |