| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
5.9%
|
| 2 | 9 |
7.6%
|
|
| 3 | 9 |
7.6%
|
|
| 4 | 18 |
15.3%
|
|
| 5 | 31 |
26.3%
|
|
| 6 | 16 |
13.6%
|
|
| 7 | 16 |
13.6%
|
|
| 8 | 7 |
5.9%
|
|
| 9 | 2 |
1.7%
|
|
| 10 | Very effective | 3 |
2.5%
|
| 11 | Don't know | 73 | |
| Sysmiss | 7 |