| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 25 |
20.8%
|
| -8 | Refusal (spontaneous) | 5 |
4.2%
|
| 20 | 1 |
0.8%
|
|
| 30 | 1 |
0.8%
|
|
| 50 | 2 |
1.7%
|
|
| 90 | 1 |
0.8%
|
|
| 100 | 85 |
70.8%
|