| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 years old or younger | 98 |
2.1%
|
| 2 | 12 years old | 111 |
2.4%
|
| 3 | 13 years old | 488 |
10.5%
|
| 4 | 14 years old | 672 |
14.5%
|
| 5 | 15 years old | 882 |
19%
|
| 6 | 16 years old | 1408 |
30.3%
|
| 7 | 17 years old or older | 987 |
21.2%
|
| Sysmiss | 75 |