| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 39 |
19.7%
|
| 2 | 22 |
11.1%
|
|
| 3 | 21 |
10.6%
|
|
| 4 | 22 |
11.1%
|
|
| 5 | 23 |
11.6%
|
|
| 6 | 18 |
9.1%
|
|
| 7 | 15 |
7.6%
|
|
| 8 | 10 |
5.1%
|
|
| 9 | 10 |
5.1%
|
|
| 10 | Very effective | 18 |
9.1%
|
| 11 | Don't know | 183 | |
| Sysmiss | 49 |