| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 9 |
4.1%
|
| 2 | 2 | 4 |
1.8%
|
| 3 | 3 | 6 |
2.7%
|
| 4 | 4 | 6 |
2.7%
|
| Missing value | 197 |
88.7%
|