| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
3.1%
|
| 2 | 10 |
3.4%
|
|
| 3 | 21 |
7.2%
|
|
| 4 | 23 |
7.8%
|
|
| 5 | 47 |
16%
|
|
| 6 | 29 |
9.9%
|
|
| 7 | 19 |
6.5%
|
|
| 8 | 14 |
4.8%
|
|
| 9 | 4 |
1.4%
|
|
| 10 | Very effective | 4 |
1.4%
|
| 11 | Don't know | 113 |
38.6%
|
| Sysmiss | 8 |