| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very effective | 1332 |
34%
|
| 2 | Fairly effective | 1355 |
34.6%
|
| 3 | Fairly ineffective | 612 |
15.6%
|
| 4 | Very ineffective | 617 |
15.8%
|
| Sysmiss | 5559 |