| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
3.4%
|
| 2 | 6 |
5%
|
|
| 3 | 10 |
8.4%
|
|
| 4 | 7 |
5.9%
|
|
| 5 | 12 |
10.1%
|
|
| 6 | 29 |
24.4%
|
|
| 7 | 19 |
16%
|
|
| 8 | 16 |
13.4%
|
|
| 9 | 9 |
7.6%
|
|
| 10 | Very effective | 7 |
5.9%
|
| 11 | Don't know | 92 | |
| Sysmiss | 27 |