| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very effective | 504 |
6%
|
| 2 | Effective | 1696 |
20%
|
| 3 | Moderately effective | 2315 |
27.4%
|
| 4 | Poorly effective | 2426 |
28.7%
|
| 5 | Not effective at all | 1522 |
18%
|