| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
6.6%
|
| 2 | 6 |
9.8%
|
|
| 3 | 3 |
4.9%
|
|
| 4 | 12 |
19.7%
|
|
| 5 | 10 |
16.4%
|
|
| 6 | 14 |
23%
|
|
| 7 | 9 |
14.8%
|
|
| 8 | 3 |
4.9%
|
|
| 10 | Very effective | 0 |
0%
|
| 11 | Don't know | 50 | |
| Sysmiss | 23 |