| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
9%
|
| 2 | 7 |
6.3%
|
|
| 3 | 7 |
6.3%
|
|
| 4 | 10 |
9%
|
|
| 5 | 11 |
9.9%
|
|
| 6 | 17 |
15.3%
|
|
| 7 | 12 |
10.8%
|
|
| 8 | 10 |
9%
|
|
| 9 | 8 |
7.2%
|
|
| 10 | Very effective | 12 |
10.8%
|
| 11 | Don't know | 7 |
6.3%
|
| Sysmiss | 53 |