| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 1 |
0.6%
|
|
| 3 | 2 |
1.3%
|
|
| 4 | 8 |
5.1%
|
|
| 5 | 11 |
7.1%
|
|
| 6 | 14 |
9%
|
|
| 7 | 28 |
17.9%
|
|
| 8 | 52 |
33.3%
|
|
| 9 | 37 |
23.7%
|
|
| 10 | Very effective | 3 |
1.9%
|
| 11 | Don't know | 46 |