| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2 | 10 |
4.5%
|
| 2 | 3 | 18 |
8.1%
|
| 3 | 4 | 4 |
1.8%
|
| 4 | 5 | 7 |
3.2%
|
| 5 | 6 | 3 |
1.4%
|
| Missing value | 180 |
81.1%
|