| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Not at all effective | 61 |
5.1%
|
| 1 | Not very effective | 200 |
16.7%
|
| 2 | Somewhat effective | 612 |
51%
|
| 3 | Very effective | 282 |
23.5%
|
| 9 | Don't know | 45 |
3.8%
|
| 98 | Refused | 0 |
0%
|