| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
3.2%
|
| 2 | 8 |
5.1%
|
|
| 3 | 9 |
5.7%
|
|
| 4 | 9 |
5.7%
|
|
| 5 | 15 |
9.5%
|
|
| 6 | 25 |
15.8%
|
|
| 7 | 25 |
15.8%
|
|
| 8 | 34 |
21.5%
|
|
| 9 | 17 |
10.8%
|
|
| 10 | Very effective | 11 |
7%
|
| 11 | Don't know | 47 | |
| Sysmiss | 33 |