| Value | Category | Cases | |
|---|---|---|---|
| 1 | 12 | 6 |
2.2%
|
| 2 | 4 | 1 |
0.4%
|
| 3 | 5 | 17 |
6.3%
|
| 4 | 6 | 4 |
1.5%
|
| 5 | 7 | 1 |
0.4%
|
| Missing value | 243 |
89.3%
|