| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Very effective | 471 |
39.3%
|
| 1 | Effective | 574 |
47.8%
|
| 2 | Not very effective | 107 |
8.9%
|
| 3 | Not at all effective | 35 |
2.9%
|
| 9 | Don't Know | 13 |
1.1%
|
| 98 | Refused | 0 |
0%
|