| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
1.1%
|
| 3 | 10 |
11.5%
|
|
| 4 | 10 |
11.5%
|
|
| 5 | 14 |
16.1%
|
|
| 6 | 12 |
13.8%
|
|
| 7 | 15 |
17.2%
|
|
| 8 | 14 |
16.1%
|
|
| 9 | 7 |
8%
|
|
| 10 | Very effective | 4 |
4.6%
|
| 11 | Don't know | 79 | |
| Sysmiss | 28 |