| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. No effect | 13 |
31%
|
| 2 | 2. Small | 4 |
9.5%
|
| 3 | 3. Moderate | 10 |
23.8%
|
| 4 | 4. Large | 13 |
31%
|
| 9 | 9. Don't know | 2 |
4.8%
|
| Sysmiss | 957 |