| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 5 |
3%
|
|
| 3 | 6 |
3.6%
|
|
| 4 | 4 |
2.4%
|
|
| 5 | 12 |
7.3%
|
|
| 6 | 22 |
13.3%
|
|
| 7 | 30 |
18.2%
|
|
| 8 | 47 |
28.5%
|
|
| 9 | 30 |
18.2%
|
|
| 10 | Very effective | 9 |
5.5%
|
| 11 | Don't know | 23 | |
| Sysmiss | 5 |