| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 40 |
11.4%
|
| -8 | Refusal (spontaneous) | 10 |
2.8%
|
| 1 | 1 |
0.3%
|
|
| 2 | 1 |
0.3%
|
|
| 7 | 2 |
0.6%
|
|
| 8 | 1 |
0.3%
|
|
| 10 | 123 |
35%
|
|
| 15 | 2 |
0.6%
|
|
| 17 | 147 |
41.9%
|
|
| 21 | 1 |
0.3%
|
|
| 25 | 2 |
0.6%
|
|
| 27 | 21 |
6%
|