| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less harmful | 881 |
11.4%
|
| 2 | No difference | 1494 |
19.4%
|
| 3 | More harmful | 3234 |
42%
|
| 7 | Don't know | 2097 |
27.2%
|
| Sysmiss | 3 |