| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
7%
|
| 10 | Very effective | 9 |
5.7%
|
| 11 | Don't know | 46 |
29.1%
|
| 2 | 6 |
3.8%
|
|
| 3 | 15 |
9.5%
|
|
| 4 | 27 |
17.1%
|
|
| 5 | 18 |
11.4%
|
|
| 6 | 8 |
5.1%
|
|
| 7 | 8 |
5.1%
|
|
| 8 | 9 |
5.7%
|
|
| 9 | 1 |
0.6%
|
|
| Sysmiss | 7 |