| Value | Category | Cases | |
|---|---|---|---|
| 1 | 6 |
2.6%
|
|
| 4 | 9 |
3.8%
|
|
| 5 | 4 |
1.7%
|
|
| 7 | 2 |
0.9%
|
|
| Missing value | 214 |
91.1%
|