| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 7 |
0.2%
|
| 2 | 12 years old | 126 |
3.7%
|
| 3 | 13 years old | 1101 |
31.9%
|
| 4 | 14 years old | 1184 |
34.3%
|
| 5 | 15 years old | 905 |
26.2%
|
| 6 | 16 years old | 98 |
2.8%
|
| 7 | 17 years old or older | 28 |
0.8%
|
| Sysmiss | 1 |