| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
6%
|
| 2 | 5 |
3.7%
|
|
| 3 | 8 |
6%
|
|
| 4 | 15 |
11.2%
|
|
| 5 | 19 |
14.2%
|
|
| 6 | 21 |
15.7%
|
|
| 7 | 22 |
16.4%
|
|
| 8 | 18 |
13.4%
|
|
| 9 | 13 |
9.7%
|
|
| 10 | Very effective | 5 |
3.7%
|
| 11 | NA | 3 | |
| 12 | Don't know | 65 | |
| Sysmiss | 36 |