| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1%
|
| 2 | 7 |
2.3%
|
|
| 3 | 11 |
3.5%
|
|
| 4 | 24 |
7.7%
|
|
| 5 | 49 |
15.8%
|
|
| 6 | 46 |
14.8%
|
|
| 7 | 24 |
7.7%
|
|
| 8 | 43 |
13.9%
|
|
| 9 | 11 |
3.5%
|
|
| 10 | Very effective | 7 |
2.3%
|
| 11 | Don't know | 85 |
27.4%
|
| Sysmiss | 58 |