| Value | Category | Cases | |
|---|---|---|---|
| 1 | 11 Years Old | 165 |
2.7%
|
| 2 | 12 years Old | 538 |
8.9%
|
| 3 | 13 Years Old | 1897 |
31.5%
|
| 4 | 14 Years Old | 1904 |
31.6%
|
| 5 | 15 Years Old | 1504 |
25%
|
| 6 | 16 Years Old | 12 |
0.2%
|
| 7 | 17 Years Old or Older | 8 |
0.1%
|
| Sysmiss | 18 |