| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 6 |
0.1%
|
| 2 | 12 years old | 27 |
0.7%
|
| 3 | 13 years old | 528 |
13%
|
| 4 | 14 years old | 1350 |
33.2%
|
| 5 | 15 years old | 1176 |
28.9%
|
| 6 | 16 years old | 950 |
23.4%
|
| 7 | 17 years old or older | 31 |
0.8%
|
| Sysmiss | 15 |