| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Very effective | 518 |
43.2%
|
| 1 | Effective | 446 |
37.2%
|
| 2 | Not very effective | 146 |
12.2%
|
| 3 | Not at all effective | 72 |
6%
|
| 9 | Don't Know | 18 |
1.5%
|
| 98 | Refused | 0 |
0%
|