| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
2.5%
|
| 2 | 32 |
16%
|
|
| 3 | 34 |
17%
|
|
| 4 | 30 |
15%
|
|
| 5 | 29 |
14.5%
|
|
| 6 | 23 |
11.5%
|
|
| 7 | 17 |
8.5%
|
|
| 8 | 12 |
6%
|
|
| 9 | 10 |
5%
|
|
| 10 | Very effective | 8 |
4%
|
| 11 | Don't know | 92 | |
| Sysmiss | 11 |