| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
3.1%
|
| 2 | 6 |
3.7%
|
|
| 3 | 5 |
3.1%
|
|
| 4 | 9 |
5.6%
|
|
| 5 | 8 |
5%
|
|
| 6 | 10 |
6.2%
|
|
| 7 | 17 |
10.6%
|
|
| 8 | 17 |
10.6%
|
|
| 9 | 26 |
16.1%
|
|
| 10 | Very effective | 24 |
14.9%
|
| 11 | Don't know | 34 |
21.1%
|
| 12 | Not applicable | 0 |
0%
|
| Sysmiss | 46 |