| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 6 |
0.2%
|
| 2 | 12 years | 25 |
0.7%
|
| 3 | 13 years old | 831 |
24.4%
|
| 4 | 14 years old | 1278 |
37.5%
|
| 5 | 15 years old | 1004 |
29.4%
|
| 6 | 16 years old | 257 |
7.5%
|
| 7 | 17 years old or older | 10 |
0.3%
|
| Sysmiss | 2 |