| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
2%
|
| 2 | 5 |
2%
|
|
| 3 | 12 |
4.7%
|
|
| 4 | 20 |
7.9%
|
|
| 5 | 66 |
26.1%
|
|
| 6 | 56 |
22.1%
|
|
| 7 | 31 |
12.3%
|
|
| 8 | 29 |
11.5%
|
|
| 9 | 13 |
5.1%
|
|
| 10 | Very effective | 16 |
6.3%
|
| 11 | Don't know | 54 | |
| Sysmiss | 89 |