| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 30 |
11.6%
|
| 2 | 13 |
5%
|
|
| 3 | 27 |
10.4%
|
|
| 4 | 23 |
8.9%
|
|
| 5 | 34 |
13.1%
|
|
| 6 | 32 |
12.4%
|
|
| 7 | 28 |
10.8%
|
|
| 8 | 18 |
6.9%
|
|
| 9 | 20 |
7.7%
|
|
| 10 | Very effective | 34 |
13.1%
|
| 11 | Don't know | 134 | |
| Sysmiss | 37 |