| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 15 |
6.4%
|
| 2 | 34 |
14.6%
|
|
| 3 | 30 |
12.9%
|
|
| 4 | 19 |
8.2%
|
|
| 5 | 30 |
12.9%
|
|
| 6 | 31 |
13.3%
|
|
| 7 | 27 |
11.6%
|
|
| 8 | 22 |
9.4%
|
|
| 9 | 17 |
7.3%
|
|
| 10 | Very effective | 8 |
3.4%
|
| 11 | Don't know | 59 | |
| Sysmiss | 11 |