| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 29 |
7.5%
|
| 2 | 38 |
9.8%
|
|
| 3 | 66 |
17.1%
|
|
| 4 | 70 |
18.1%
|
|
| 5 | 69 |
17.9%
|
|
| 6 | 47 |
12.2%
|
|
| 7 | 30 |
7.8%
|
|
| 8 | 24 |
6.2%
|
|
| 9 | 5 |
1.3%
|
|
| 10 | Very effective | 8 |
2.1%
|
| 11 | Don't know | 88 | |
| Sysmiss | 4 |