| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
6.2%
|
| 3 | 2 |
3.1%
|
|
| 4 | 2 |
3.1%
|
|
| 5 | 3 |
4.6%
|
|
| 6 | 3 |
4.6%
|
|
| 7 | 1 |
1.5%
|
|
| 10 | Very effective | 1 |
1.5%
|
| 11 | Don’t know | 32 |
49.2%
|
| Sysmiss | 17 |
26.2%
|