| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
5.1%
|
| 2 | 7 |
4.5%
|
|
| 3 | 8 |
5.1%
|
|
| 4 | 9 |
5.8%
|
|
| 5 | 23 |
14.7%
|
|
| 6 | 14 |
9%
|
|
| 7 | 16 |
10.3%
|
|
| 8 | 7 |
4.5%
|
|
| 9 | 17 |
10.9%
|
|
| 10 | Very effective | 11 |
7.1%
|
| 11 | Don't know | 36 |
23.1%
|
| 12 | Not applicable | 0 |
0%
|
| Sysmiss | 51 |