| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very effective | 632 |
5.4%
|
| 2 | Effective | 2069 |
17.7%
|
| 3 | Moderate | 1637 |
14%
|
| 4 | Not effective | 904 |
7.7%
|
| 5 | Don't know | 6450 |
55.2%
|