| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 24 |
5.8%
|
| 2 | 23 |
5.5%
|
|
| 3 | 47 |
11.3%
|
|
| 4 | 90 |
21.7%
|
|
| 5 | 113 |
27.2%
|
|
| 6 | 55 |
13.3%
|
|
| 7 | 39 |
9.4%
|
|
| 8 | 14 |
3.4%
|
|
| 9 | 5 |
1.2%
|
|
| 10 | Very effective | 5 |
1.2%
|
| 11 | Don't know | 59 | |
| Sysmiss | 4 |