Value | Category | Cases | |
---|---|---|---|
-1 | Missing | 2 |
0.1%
|
0 | Not at all effective | 430 |
17.9%
|
1 | Not very effective | 260 |
10.8%
|
2 | Somewhat effective | 588 |
24.5%
|
3 | Very effective | 447 |
18.6%
|
9 | Don't know | 673 |
28%
|
998 | Refused | 0 |
0%
|