| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
0.4%
|
| 1 | No confidence at all | 83 |
8.4%
|
| 2 | Very low confidence | 161 |
16.3%
|
| 3 | Low confidence | 499 |
50.6%
|
| 4 | High confidence | 210 |
21.3%
|
| 5 | Very high confidence | 16 |
1.6%
|
| 6 | Complete confidence | 14 |
1.4%
|