| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
2%
|
| 2 | 5 |
2%
|
|
| 3 | 16 |
6.3%
|
|
| 4 | 19 |
7.5%
|
|
| 5 | 52 |
20.6%
|
|
| 6 | 42 |
16.6%
|
|
| 7 | 44 |
17.4%
|
|
| 8 | 43 |
17%
|
|
| 9 | 14 |
5.5%
|
|
| 10 | Very effective | 13 |
5.1%
|
| 11 | Don't know | 53 |