| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 18 |
8.7%
|
| 2 | 10 |
4.8%
|
|
| 3 | 12 |
5.8%
|
|
| 4 | 17 |
8.2%
|
|
| 5 | 28 |
13.5%
|
|
| 6 | 32 |
15.5%
|
|
| 7 | 29 |
14%
|
|
| 8 | 39 |
18.8%
|
|
| 9 | 8 |
3.9%
|
|
| 10 | Very effective | 14 |
6.8%
|
| 11 | Don't know | 49 | |
| Sysmiss | 70 |