| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
11.1%
|
| 2 | 6 |
11.1%
|
|
| 3 | 7 |
13%
|
|
| 4 | 2 |
3.7%
|
|
| 5 | 4 |
7.4%
|
|
| 6 | 6 |
11.1%
|
|
| 7 | 5 |
9.3%
|
|
| 8 | 5 |
9.3%
|
|
| 9 | 6 |
11.1%
|
|
| 10 | Very effective | 7 |
13%
|
| 11 | Don't know | 94 | |
| Sysmiss | 32 |