| Value | Category | Cases | |
|---|---|---|---|
| 1 | 16 |
5.2%
|
|
| 2 | 12 |
3.9%
|
|
| 3 | 5 |
1.6%
|
|
| 4 | 4 |
1.3%
|
|
| 8 | 1 |
0.3%
|
|
| Missing value | 270 |
87.7%
|