| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
5.2%
|
| 2 | 6 |
3.5%
|
|
| 3 | 8 |
4.7%
|
|
| 4 | 22 |
12.8%
|
|
| 5 | 24 |
14%
|
|
| 6 | 23 |
13.4%
|
|
| 7 | 30 |
17.4%
|
|
| 8 | 26 |
15.1%
|
|
| 9 | 14 |
8.1%
|
|
| 10 | Very effective | 10 |
5.8%
|
| 11 | Don't know | 62 | |
| Sysmiss | 28 |