| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
7%
|
| 3 | 7 |
9.9%
|
|
| 4 | 6 |
8.5%
|
|
| 5 | 5 |
7%
|
|
| 6 | 10 |
14.1%
|
|
| 7 | 8 |
11.3%
|
|
| 8 | 8 |
11.3%
|
|
| 9 | 8 |
11.3%
|
|
| 10 | Very effective | 14 |
19.7%
|
| 11 | Don't know | 75 | |
| Sysmiss | 34 |