| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 5 |
2.8%
|
|
| 3 | 6 |
3.4%
|
|
| 4 | 4 |
2.3%
|
|
| 5 | 7 |
4%
|
|
| 6 | 4 |
2.3%
|
|
| 7 | 6 |
3.4%
|
|
| 8 | 12 |
6.8%
|
|
| 9 | 6 |
3.4%
|
|
| 10 | Very effective | 4 |
2.3%
|
| 11 | Don't know | 0 |
0%
|
| NA | 123 |
69.5%
|