| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
16.7%
|
| 2 | 2 |
3.7%
|
|
| 3 | 2 |
3.7%
|
|
| 4 | 5 |
9.3%
|
|
| 5 | 5 |
9.3%
|
|
| 6 | 4 |
7.4%
|
|
| 7 | 11 |
20.4%
|
|
| 8 | 4 |
7.4%
|
|
| 9 | 2 |
3.7%
|
|
| 10 | Very effective | 10 |
18.5%
|
| 11 | N/A | 6 | |
| 12 | Don't know | 96 | |
| Sysmiss | 24 |