| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 110 |
14.2%
|
| -7 | Does not apply | 321 |
41.6%
|
| 0 | No impact | 186 |
24.1%
|
| 1 | Minor impact | 78 |
10.1%
|
| 2 | Moderate impact | 54 |
7%
|
| 3 | Major impact | 19 |
2.5%
|
| 4 | Very major impact | 4 |
0.5%
|