| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
0.5%
|
|
| 3 | 5 |
1.1%
|
|
| 4 | 12 |
2.7%
|
|
| 5 | 24 |
5.4%
|
|
| 6 | 37 |
8.4%
|
|
| 7 | 86 |
19.4%
|
|
| 8 | 139 |
31.4%
|
|
| 9 | 71 |
16%
|
|
| 10 | Very effective | 22 |
5%
|
| 11 | Don't know | 0 |
0%
|
| NA | 45 |
10.2%
|