| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 15 |
7.3%
|
| 2 | 14 |
6.8%
|
|
| 3 | 15 |
7.3%
|
|
| 4 | 22 |
10.7%
|
|
| 5 | 54 |
26.2%
|
|
| 6 | 31 |
15%
|
|
| 7 | 17 |
8.3%
|
|
| 8 | 21 |
10.2%
|
|
| 9 | 6 |
2.9%
|
|
| 10 | Very effective | 11 |
5.3%
|
| 11 | Don't know | 100 |