| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
5.4%
|
| 2 | 5 |
3.9%
|
|
| 3 | 14 |
10.9%
|
|
| 4 | 24 |
18.6%
|
|
| 5 | 18 |
14%
|
|
| 6 | 22 |
17.1%
|
|
| 7 | 21 |
16.3%
|
|
| 8 | 8 |
6.2%
|
|
| 9 | 5 |
3.9%
|
|
| 10 | Very effective | 5 |
3.9%
|
| 11 | Don't know | 62 | |
| Sysmiss | 7 |