| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
4.1%
|
| 2 | 9 |
4.7%
|
|
| 3 | 13 |
6.7%
|
|
| 4 | 21 |
10.9%
|
|
| 5 | 25 |
13%
|
|
| 6 | 25 |
13%
|
|
| 7 | 31 |
16.1%
|
|
| 8 | 30 |
15.5%
|
|
| 9 | 14 |
7.3%
|
|
| 10 | Very effective | 17 |
8.8%
|
| 11 | Don't know | 34 | |
| Sysmiss | 35 |