Value | Category | Cases | |
---|---|---|---|
-1 | Missing | 1 |
0.1%
|
0 | Not at all effective | 234 |
19.5%
|
1 | Not very effective | 307 |
25.6%
|
2 | Somewhat effective | 340 |
28.4%
|
3 | Very effective | 196 |
16.3%
|
9 | Don't know | 121 |
10.1%
|
998 | Refused | 0 |
0%
|