| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 13 |
8.3%
|
| 2 | 10 |
6.4%
|
|
| 3 | 8 |
5.1%
|
|
| 4 | 21 |
13.5%
|
|
| 5 | 29 |
18.6%
|
|
| 6 | 19 |
12.2%
|
|
| 7 | 26 |
16.7%
|
|
| 8 | 21 |
13.5%
|
|
| 9 | 2 |
1.3%
|
|
| 10 | Very effective | 7 |
4.5%
|
| 11 | Don't know | 93 | |
| Sysmiss | 77 |