| Value | Category | Cases | |
|---|---|---|---|
| -5 | Not available | 15 |
7.5%
|
| 4 | 1 |
0.5%
|
|
| 5 | 1 |
0.5%
|
|
| 6 | 6 |
3%
|
|
| 7 | 9 |
4.5%
|
|
| 8 | 138 |
69%
|
|
| 9 | 12 |
6%
|
|
| 10 | 4 |
2%
|
|
| 11 | 4 |
2%
|
|
| 12 | 3 |
1.5%
|
|
| 14 | 3 |
1.5%
|
|
| 15 | 1 |
0.5%
|
|
| 17 | 1 |
0.5%
|
|
| 19 | 1 |
0.5%
|
|
| 20 | 1 |
0.5%
|