| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. No effect | 1 |
20%
|
| 2 | 2. Small | 1 |
20%
|
| 3 | 3. Moderate | 0 |
0%
|
| 4 | 4. Large | 3 |
60%
|
| 9 | 9. Don't know | 0 |
0%
|
| Sysmiss | 994 |