| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
3.4%
|
| 2 | 9 |
6.1%
|
|
| 3 | 20 |
13.6%
|
|
| 4 | 19 |
12.9%
|
|
| 5 | 25 |
17%
|
|
| 6 | 12 |
8.2%
|
|
| 7 | 27 |
18.4%
|
|
| 8 | 13 |
8.8%
|
|
| 9 | 9 |
6.1%
|
|
| 10 | Very effective | 8 |
5.4%
|
| 11 | Don't know | 84 | |
| Sysmiss | 31 |