| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very effective | 766 |
32.8%
|
| 2 | Fairly effective | 987 |
42.2%
|
| 3 | Fairly ineffective | 318 |
13.6%
|
| 4 | Very ineffective | 267 |
11.4%
|
| Sysmiss | 1212 |