| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
11.1%
|
| 2 | 7 |
7.1%
|
|
| 3 | 6 |
6.1%
|
|
| 4 | 4 |
4%
|
|
| 5 | 7 |
7.1%
|
|
| 6 | 6 |
6.1%
|
|
| 7 | 10 |
10.1%
|
|
| 8 | 12 |
12.1%
|
|
| 9 | 10 |
10.1%
|
|
| 10 | Very effective | 8 |
8.1%
|
| 11 | Don't know | 18 |
18.2%
|
| Sysmiss | 65 |