| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 20 |
100%
|
| 1 | Not at all | 0 | |
| 2 | Slightly | 0 | |
| 3 | Moderately | 0 | |
| 4 | Very much | 0 | |
| 5 | Extremely | 0 |