| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
3.8%
|
| 2 | 2 |
3.8%
|
|
| 4 | 2 |
3.8%
|
|
| 5 | 6 |
11.5%
|
|
| 6 | 4 |
7.7%
|
|
| 7 | 7 |
13.5%
|
|
| 8 | 14 |
26.9%
|
|
| 9 | 8 |
15.4%
|
|
| 10 | Very effective | 7 |
13.5%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 82 |