Value | Category | Cases | |
---|---|---|---|
-1 | Missing | 26 |
0.1%
|
0 | Not at all effective | 3708 |
7.2%
|
1 | Not very effective | 9521 |
18.5%
|
2 | Somewhat effective | 18537 |
35.9%
|
3 | Very effective | 15021 |
29.1%
|
9 | Don't know | 4774 |
9.3%
|
998 | Refused | 0 |
0%
|