| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
1.2%
|
| 2 | 0 |
0%
|
|
| 3 | 1 |
1.2%
|
|
| 4 | 1 |
1.2%
|
|
| 5 | 10 |
11.9%
|
|
| 6 | 8 |
9.5%
|
|
| 7 | 14 |
16.7%
|
|
| 8 | 22 |
26.2%
|
|
| 9 | 10 |
11.9%
|
|
| 10 | Very effective | 11 |
13.1%
|
| 11 | 6 |
7.1%
|