| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
4.5%
|
| 2 | 3 |
1.7%
|
|
| 3 | 16 |
9%
|
|
| 4 | 25 |
14.1%
|
|
| 5 | 6 |
3.4%
|
|
| 6 | 19 |
10.7%
|
|
| 7 | 19 |
10.7%
|
|
| 8 | 12 |
6.8%
|
|
| 9 | 15 |
8.5%
|
|
| 10 | Very effective | 7 |
4%
|
| 11 | Don't know | 47 |
26.6%
|
| Sysmiss | 3 |