| Value | Category | Cases | |
|---|---|---|---|
| 1 | 12-14 | 1899 |
7.5%
|
| 2 | 15 | 644 |
2.5%
|
| 3 | 16 | 663 |
2.6%
|
| 4 | 17 | 569 |
2.2%
|
| 5 | 5 | 833 |
3.3%
|
| 6 | 6-11 | 4424 |
17.4%
|
| Missing value | 16423 |
64.5%
|