| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very effective | 759 |
36.1%
|
| 2 | Fairly effective | 689 |
32.8%
|
| 3 | Fairly ineffective | 339 |
16.1%
|
| 4 | Very ineffective | 315 |
15%
|
| Sysmiss | 1448 |