| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 - Not effective at all | 6 |
2.3%
|
| 2 | 2 | 6 |
2.3%
|
| 3 | 3 | 10 |
3.9%
|
| 4 | 4 | 13 |
5%
|
| 5 | 5 | 20 |
7.8%
|
| 6 | 6 | 19 |
7.4%
|
| 7 | 7 | 26 |
10.1%
|
| 8 | 8 | 28 |
10.9%
|
| 9 | 9 | 11 |
4.3%
|
| 10 | 10 - Very effective | 8 |
3.1%
|
| 11 | Don't know | 111 |
43%
|