| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
3.2%
|
| 2 | 7 |
3.2%
|
|
| 3 | 4 |
1.8%
|
|
| 4 | 10 |
4.6%
|
|
| 5 | 16 |
7.4%
|
|
| 6 | 11 |
5.1%
|
|
| 7 | 26 |
12%
|
|
| 8 | 17 |
7.8%
|
|
| 9 | 13 |
6%
|
|
| 10 | Very effective | 10 |
4.6%
|
| 11 | Don't know | 96 |
44.2%
|
| Sysmiss | 8 |