| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
2.1%
|
| 2 | 4 |
1.4%
|
|
| 3 | 4 |
1.4%
|
|
| 4 | 9 |
3.1%
|
|
| 5 | 24 |
8.4%
|
|
| 6 | 31 |
10.8%
|
|
| 7 | 54 |
18.8%
|
|
| 8 | 69 |
24%
|
|
| 9 | 47 |
16.4%
|
|
| 10 | Very effective | 39 |
13.6%
|
| 11 | Don't know | 89 | |
| Sysmiss | 45 |