| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 40 |
2.4%
|
| 1 | No confidence at all | 363 |
22.1%
|
| 2 | Very low confidence | 323 |
19.7%
|
| 3 | Low confidence | 838 |
51.1%
|
| 4 | High confidence | 54 |
3.3%
|
| 5 | Very high confidence | 6 |
0.4%
|
| 6 | Complete confidence | 16 |
1%
|