| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
3.9%
|
| 2 | 7 |
3.1%
|
|
| 3 | 20 |
8.8%
|
|
| 4 | 20 |
8.8%
|
|
| 5 | 45 |
19.7%
|
|
| 6 | 46 |
20.2%
|
|
| 7 | 38 |
16.7%
|
|
| 8 | 23 |
10.1%
|
|
| 9 | 10 |
4.4%
|
|
| 10 | Very effective | 10 |
4.4%
|
| 11 | Don't know | 148 | |
| Sysmiss | 45 |