| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
2.3%
|
| 2 | 3 |
1.2%
|
|
| 3 | 8 |
3.1%
|
|
| 4 | 7 |
2.7%
|
|
| 5 | 10 |
3.9%
|
|
| 6 | 18 |
7%
|
|
| 7 | 12 |
4.7%
|
|
| 8 | 15 |
5.9%
|
|
| 9 | 14 |
5.5%
|
|
| 10 | Very effective | 7 |
2.7%
|
| 11 | Don't know | 156 |
60.9%
|
| Sysmiss | 11 |