| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missed | 0 |
0%
|
| 1 | Very effective | 447 |
37.3%
|
| 2 | Somewhat effective | 478 |
39.9%
|
| 3 | Not very effective | 157 |
13.1%
|
| 4 | Not at all effective | 81 |
6.8%
|
| 9 | Don't know | 36 |
3%
|
| 98 | Refused | 0 |
0%
|