| Value | Category | Cases | |
|---|---|---|---|
| -9 | refused | 0 |
0%
|
| -8 | dk | 0 |
0%
|
| 0 | none | 3534 |
64.8%
|
| 1 | 1647 |
30.2%
|
|
| 2 | 216 |
4%
|
|
| 3 | 41 |
0.8%
|
|
| 4 | 8 |
0.1%
|
|
| 5 | 3 |
0.1%
|
|
| 6 | 2 |
0%
|