| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 5 |
4.9%
|
|
| 3 | 6 |
5.8%
|
|
| 4 | 10 |
9.7%
|
|
| 5 | 12 |
11.7%
|
|
| 6 | 9 |
8.7%
|
|
| 7 | 10 |
9.7%
|
|
| 8 | 8 |
7.8%
|
|
| 9 | 5 |
4.9%
|
|
| 10 | Very effective | 1 |
1%
|
| 11 | Don't know | 37 |
35.9%
|
| Sysmiss | 9 |