| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
2.3%
|
| 2 | 9 |
6.8%
|
|
| 3 | 17 |
12.9%
|
|
| 4 | 19 |
14.4%
|
|
| 5 | 22 |
16.7%
|
|
| 6 | 17 |
12.9%
|
|
| 7 | 22 |
16.7%
|
|
| 8 | 13 |
9.8%
|
|
| 9 | 5 |
3.8%
|
|
| 10 | Very effective | 5 |
3.8%
|
| 11 | Don't know | 62 | |
| Sysmiss | 4 |