| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missed | 0 |
0%
|
| 1 | Very effective | 674 |
56.2%
|
| 2 | Somewhat effective | 423 |
35.3%
|
| 3 | Not very effective | 66 |
5.5%
|
| 4 | Not at all effective | 16 |
1.3%
|
| 9 | Don't know | 20 |
1.7%
|
| 98 | Refused | 0 |
0%
|