| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
2%
|
| 2 | 2 |
1%
|
|
| 3 | 8 |
4%
|
|
| 4 | 16 |
8%
|
|
| 5 | 18 |
9%
|
|
| 6 | 18 |
9%
|
|
| 7 | 32 |
16%
|
|
| 8 | 31 |
15.5%
|
|
| 9 | 29 |
14.5%
|
|
| 10 | Very effective | 42 |
21%
|
| 11 | Don't know | 66 | |
| Sysmiss | 53 |