| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 14 |
9%
|
| 2 | 4 |
2.6%
|
|
| 3 | 7 |
4.5%
|
|
| 4 | 15 |
9.6%
|
|
| 5 | 32 |
20.5%
|
|
| 6 | 22 |
14.1%
|
|
| 7 | 18 |
11.5%
|
|
| 8 | 28 |
17.9%
|
|
| 9 | 15 |
9.6%
|
|
| 10 | Very effective | 1 |
0.6%
|
| 11 | Don't know | 79 | |
| Sysmiss | 54 |