| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very effective | 426 |
16%
|
| 2 | Fairly effective | 1211 |
45.6%
|
| 3 | Fairly ineffective | 620 |
23.4%
|
| 4 | Very ineffective | 398 |
15%
|
| Sysmiss | 895 |