| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
4.3%
|
| 2 | 6 |
3.7%
|
|
| 3 | 8 |
5%
|
|
| 4 | 12 |
7.5%
|
|
| 5 | 11 |
6.8%
|
|
| 6 | 9 |
5.6%
|
|
| 7 | 12 |
7.5%
|
|
| 8 | 22 |
13.7%
|
|
| 9 | 19 |
11.8%
|
|
| 10 | Very effective | 16 |
9.9%
|
| 11 | Don't know | 39 |
24.2%
|
| 12 | Not applicable | 0 |
0%
|
| Sysmiss | 46 |