| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very effective | 1475 |
33.8%
|
| 2 | Fairly effective | 1764 |
40.5%
|
| 3 | Fairly ineffective | 596 |
13.7%
|
| 4 | Very ineffective | 525 |
12%
|
| Sysmiss | 5115 |