| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
1.2%
|
| 2 | 5 |
1%
|
|
| 3 | 26 |
5.2%
|
|
| 4 | 39 |
7.8%
|
|
| 5 | 84 |
16.9%
|
|
| 6 | 88 |
17.7%
|
|
| 7 | 92 |
18.5%
|
|
| 8 | 64 |
12.9%
|
|
| 9 | 33 |
6.6%
|
|
| 10 | Very effective | 27 |
5.4%
|
| 11 | 33 |
6.6%
|