| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
3%
|
| 2 | 5 |
3%
|
|
| 3 | 10 |
6%
|
|
| 4 | 9 |
5.4%
|
|
| 5 | 12 |
7.1%
|
|
| 6 | 9 |
5.4%
|
|
| 7 | 8 |
4.8%
|
|
| 8 | 19 |
11.3%
|
|
| 9 | 25 |
14.9%
|
|
| 10 | Very effective | 31 |
18.5%
|
| 11 | Don't know | 33 |
19.6%
|
| 12 | Not applicable | 2 |
1.2%
|
| Sysmiss | 39 |