| Value | Category | Cases | |
|---|---|---|---|
| 1 | 28 |
3.2%
|
|
| 2 | 13 |
1.5%
|
|
| 3 | 20 |
2.3%
|
|
| 4 | 4 |
0.5%
|
|
| Missing value | 800 |
92.5%
|