| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Very effective | 486 |
40.5%
|
| 1 | Effective | 568 |
47.3%
|
| 2 | Not very effective | 109 |
9.1%
|
| 3 | Not at all effective | 28 |
2.3%
|
| 9 | Don't Know | 9 |
0.8%
|
| 98 | Refused | 0 |
0%
|