| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missed | 0 |
0%
|
| 1 | Very effective | 528 |
44%
|
| 2 | Somewhat effective | 488 |
40.7%
|
| 3 | Not very effective | 93 |
7.8%
|
| 4 | Not at all effective | 51 |
4.3%
|
| 9 | Don't know | 39 |
3.3%
|
| 98 | Refused | 0 |
0%
|