| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
2%
|
| 2 | 9 |
3.6%
|
|
| 3 | 11 |
4.5%
|
|
| 4 | 27 |
10.9%
|
|
| 5 | 56 |
22.7%
|
|
| 6 | 47 |
19%
|
|
| 7 | 33 |
13.4%
|
|
| 8 | 35 |
14.2%
|
|
| 9 | 17 |
6.9%
|
|
| 10 | Very effective | 7 |
2.8%
|
| 11 | Don't know | 59 |