| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very effective | 507 |
34.7%
|
| 2 | Effective | 316 |
21.6%
|
| 3 | Not effective | 2 |
0.1%
|
| 5 | Missing | 168 |
11.5%
|
| 9 | NA | 468 |
32%
|
| Sysmiss | 291 |