| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very effective | 582 |
29.9%
|
| 2 | Effective | 104 |
5.3%
|
| 3 | Moderately effective | 16 |
0.8%
|
| 4 | Slightly effective | 4 |
0.2%
|
| 5 | Not effective | 1 |
0.1%
|
| 95 | Missing | 50 |
2.6%
|
| 99 | NA | 1188 |
61.1%
|
| Sysmiss | 1254 |