| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 29 |
12.9%
|
| 2 | 22 |
9.8%
|
|
| 3 | 22 |
9.8%
|
|
| 4 | 25 |
11.2%
|
|
| 5 | 41 |
18.3%
|
|
| 6 | 18 |
8%
|
|
| 7 | 23 |
10.3%
|
|
| 8 | 18 |
8%
|
|
| 9 | 8 |
3.6%
|
|
| 10 | Very effective | 18 |
8%
|
| 11 | Don't know | 166 | |
| Sysmiss | 40 |