| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1%
|
| 3 | 7 |
2.3%
|
|
| 4 | 11 |
3.7%
|
|
| 5 | 22 |
7.3%
|
|
| 6 | 16 |
5.3%
|
|
| 7 | 22 |
7.3%
|
|
| 8 | 28 |
9.3%
|
|
| 9 | 4 |
1.3%
|
|
| 10 | Very effective | 1 |
0.3%
|
| 11 | Don't know | 0 |
0%
|
| NA | 186 |
62%
|