| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
4.2%
|
| 2 | 8 |
4.2%
|
|
| 3 | 7 |
3.7%
|
|
| 4 | 7 |
3.7%
|
|
| 5 | 11 |
5.8%
|
|
| 6 | 14 |
7.4%
|
|
| 7 | 17 |
9%
|
|
| 8 | 25 |
13.2%
|
|
| 9 | 9 |
4.8%
|
|
| 10 | Very effective | 15 |
7.9%
|
| 11 | Don't know | 68 |
36%
|
| Sysmiss | 12 |