| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Not at all effective | 119 |
10.1%
|
| 1 | Not very effective | 240 |
20.3%
|
| 2 | Somewhat effective | 459 |
38.8%
|
| 3 | Very effective | 223 |
18.9%
|
| 9 | Don't know | 141 |
11.9%
|
| 98 | Refused | 0 |
0%
|