| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
2.6%
|
| 2 | 5 |
3.3%
|
|
| 3 | 8 |
5.3%
|
|
| 4 | 6 |
4%
|
|
| 5 | 22 |
14.6%
|
|
| 6 | 23 |
15.2%
|
|
| 7 | 36 |
23.8%
|
|
| 8 | 25 |
16.6%
|
|
| 9 | 10 |
6.6%
|
|
| 10 | Very effective | 12 |
7.9%
|
| 11 | Don't know | 70 | |
| Sysmiss | 32 |