| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
3.8%
|
| 2 | 4 |
3%
|
|
| 3 | 14 |
10.6%
|
|
| 4 | 15 |
11.4%
|
|
| 5 | 21 |
15.9%
|
|
| 6 | 21 |
15.9%
|
|
| 7 | 23 |
17.4%
|
|
| 8 | 19 |
14.4%
|
|
| 9 | 4 |
3%
|
|
| 10 | Very effective | 6 |
4.5%
|
| 11 | Don't know | 61 | |
| Sysmiss | 5 |