| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
4%
|
| 2 | 10 |
6.7%
|
|
| 3 | 20 |
13.3%
|
|
| 4 | 20 |
13.3%
|
|
| 5 | 31 |
20.7%
|
|
| 6 | 19 |
12.7%
|
|
| 7 | 25 |
16.7%
|
|
| 8 | 9 |
6%
|
|
| 9 | 7 |
4.7%
|
|
| 10 | Very effective | 3 |
2%
|
| 11 | Don't know | 42 | |
| Sysmiss | 6 |