| Value | Category | Cases | |
|---|---|---|---|
| 1 | No effect | 25 |
3.2%
|
| 2 | Little effect | 293 |
38%
|
| 3 | Some effect | 270 |
35%
|
| 4 | Large effect | 136 |
17.6%
|
| 5 | Fatal effects | 6 |
0.8%
|
| 6 | Don't know | 41 |
5.3%
|