| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 1 |
0.2%
|
|
| 3 | 1 |
0.2%
|
|
| 4 | 8 |
1.8%
|
|
| 5 | 24 |
5.4%
|
|
| 6 | 33 |
7.4%
|
|
| 7 | 72 |
16.3%
|
|
| 8 | 99 |
22.3%
|
|
| 9 | 58 |
13.1%
|
|
| 10 | Very effective | 18 |
4.1%
|
| 11 | Don't know | 0 |
0%
|
| NA | 129 |
29.1%
|