| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
3.1%
|
| 2 | 8 |
2.5%
|
|
| 3 | 14 |
4.3%
|
|
| 4 | 29 |
9%
|
|
| 5 | 34 |
10.5%
|
|
| 6 | 50 |
15.5%
|
|
| 7 | 36 |
11.1%
|
|
| 8 | 16 |
5%
|
|
| 9 | 18 |
5.6%
|
|
| 10 | Very effective | 23 |
7.1%
|
| 11 | Don't know | 85 |
26.3%
|
| Sysmiss | 31 |