Value | Category | Cases | |
---|---|---|---|
-1 | Missing | 1 |
0.1%
|
0 | Not at all effective | 88 |
7.3%
|
1 | Not very effective | 342 |
28.5%
|
2 | Somewhat effective | 299 |
24.9%
|
3 | Very effective | 187 |
15.6%
|
9 | Don't know | 283 |
23.6%
|
998 | Refused | 0 |
0%
|