| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
4.2%
|
| 2 | 7 |
5.8%
|
|
| 3 | 10 |
8.3%
|
|
| 4 | 13 |
10.8%
|
|
| 5 | 22 |
18.3%
|
|
| 6 | 18 |
15%
|
|
| 7 | 18 |
15%
|
|
| 8 | 10 |
8.3%
|
|
| 9 | 8 |
6.7%
|
|
| 10 | Very effective | 9 |
7.5%
|
| 11 | Don't know | 84 | |
| Sysmiss | 34 |