| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 4 | 1 |
1.3%
|
|
| 5 | 8 |
10.7%
|
|
| 6 | 8 |
10.7%
|
|
| 7 | 14 |
18.7%
|
|
| 8 | 11 |
14.7%
|
|
| 9 | 3 |
4%
|
|
| 10 | Very effective | 10 |
13.3%
|
| 11 | Don't know | 20 |
26.7%
|
| Sysmiss | 9 |