| Value | Category | Cases | |
|---|---|---|---|
| 2 | 4 |
1.7%
|
|
| 4 | 6 |
2.6%
|
|
| 5 | 4 |
1.7%
|
|
| 6 | 24 |
10.4%
|
|
| 7 | 1 |
0.4%
|
|
| 8 | 157 |
68.3%
|
|
| Missing value | 34 |
14.8%
|