| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
3.1%
|
| 2 | 6 |
2.7%
|
|
| 3 | 13 |
5.8%
|
|
| 4 | 11 |
4.9%
|
|
| 5 | 20 |
8.8%
|
|
| 6 | 13 |
5.8%
|
|
| 7 | 18 |
8%
|
|
| 8 | 15 |
6.6%
|
|
| 9 | 5 |
2.2%
|
|
| 10 | Very effective | 11 |
4.9%
|
| 11 | Don't know | 107 |
47.3%
|
| Sysmiss | 11 |