| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 21 |
5.1%
|
| 2 | 24 |
5.8%
|
|
| 3 | 68 |
16.4%
|
|
| 4 | 102 |
24.6%
|
|
| 5 | 87 |
21%
|
|
| 6 | 50 |
12.1%
|
|
| 7 | 25 |
6%
|
|
| 8 | 21 |
5.1%
|
|
| 9 | 8 |
1.9%
|
|
| 10 | Very effective | 8 |
1.9%
|
| 11 | Don't know | 60 | |
| Sysmiss | 4 |