| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 7 |
2.3%
|
|
| 3 | 8 |
2.6%
|
|
| 4 | 11 |
3.6%
|
|
| 5 | 37 |
12.3%
|
|
| 6 | 34 |
11.3%
|
|
| 7 | 58 |
19.2%
|
|
| 8 | 51 |
16.9%
|
|
| 9 | 18 |
6%
|
|
| 10 | Very effective | 27 |
8.9%
|
| 11 | Don't know | 51 |
16.9%
|