| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
2.9%
|
| 2 | 7 |
4%
|
|
| 3 | 9 |
5.1%
|
|
| 4 | 17 |
9.7%
|
|
| 5 | 11 |
6.3%
|
|
| 6 | 23 |
13.1%
|
|
| 7 | 17 |
9.7%
|
|
| 8 | 8 |
4.6%
|
|
| 9 | 13 |
7.4%
|
|
| 10 | Very effective | 5 |
2.9%
|
| 11 | Don't know | 60 |
34.3%
|
| Sysmiss | 5 |