| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
4.5%
|
| 2 | 7 |
4.5%
|
|
| 3 | 15 |
9.6%
|
|
| 4 | 17 |
10.8%
|
|
| 5 | 33 |
21%
|
|
| 6 | 25 |
15.9%
|
|
| 7 | 26 |
16.6%
|
|
| 8 | 16 |
10.2%
|
|
| 9 | 4 |
2.5%
|
|
| 10 | Very effective | 7 |
4.5%
|
| 11 | Don't know | 35 | |
| Sysmiss | 6 |