| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 113 |
14.6%
|
| -7 | Does not apply | 333 |
43.1%
|
| 0 | No impact | 187 |
24.2%
|
| 1 | Minor impact | 61 |
7.9%
|
| 2 | Moderate impact | 55 |
7.1%
|
| 3 | Major impact | 16 |
2.1%
|
| 4 | Very major impact | 7 |
0.9%
|