| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 57 |
47.5%
|
| -8 | Refusal (spontaneous) | 8 |
6.7%
|
| 0 | 2 |
1.7%
|
|
| 10 | 1 |
0.8%
|
|
| 30 | 2 |
1.7%
|
|
| 50 | 13 |
10.8%
|
|
| 60 | 2 |
1.7%
|
|
| 70 | 12 |
10%
|
|
| 80 | 6 |
5%
|
|
| 90 | 1 |
0.8%
|
|
| 100 | 16 |
13.3%
|