| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
3.3%
|
| 2 | 3 |
3.3%
|
|
| 3 | 3 |
3.3%
|
|
| 4 | 5 |
5.4%
|
|
| 5 | 14 |
15.2%
|
|
| 6 | 26 |
28.3%
|
|
| 7 | 20 |
21.7%
|
|
| 8 | 12 |
13%
|
|
| 9 | 5 |
5.4%
|
|
| 10 | Extremely effective | 1 |
1.1%
|
| 11 | Don't know | 13 | |
| 12 | Prefer not to answer | 17 | |
| Sysmiss | 12 |