| Value | Category | Cases | |
|---|---|---|---|
| -2 | Refusal to answer | 0 |
0%
|
| -1 | Don't know | 0 |
0%
|
| 0 | 2288 |
86.9%
|
|
| 1 | 305 |
11.6%
|
|
| 2 | 27 |
1%
|
|
| 3 | 4 |
0.2%
|
|
| 4 | 1 |
0%
|
|
| 5 | 4 |
0.2%
|
|
| 6 | 1 |
0%
|
|
| 8 | 1 |
0%
|
|
| 30 | 2 |
0.1%
|