| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 15 |
4.5%
|
| 2 | 10 |
3%
|
|
| 3 | 15 |
4.5%
|
|
| 4 | 22 |
6.6%
|
|
| 5 | 28 |
8.4%
|
|
| 6 | 33 |
9.9%
|
|
| 7 | 39 |
11.7%
|
|
| 8 | 28 |
8.4%
|
|
| 9 | 17 |
5.1%
|
|
| 10 | Very effective | 22 |
6.6%
|
| 11 | Don't know | 104 |
31.2%
|
| Sysmiss | 21 |