| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
2.3%
|
| 2 | 7 |
4%
|
|
| 3 | 11 |
6.2%
|
|
| 4 | 15 |
8.5%
|
|
| 5 | 17 |
9.6%
|
|
| 6 | 22 |
12.4%
|
|
| 7 | 20 |
11.3%
|
|
| 8 | 23 |
13%
|
|
| 9 | 11 |
6.2%
|
|
| 10 | Very effective | 9 |
5.1%
|
| 11 | Don't know | 38 |
21.5%
|
| Sysmiss | 3 |