| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1%
|
| 2 | 3 |
1%
|
|
| 3 | 11 |
3.5%
|
|
| 4 | 24 |
7.6%
|
|
| 5 | 30 |
9.6%
|
|
| 6 | 29 |
9.2%
|
|
| 7 | 26 |
8.3%
|
|
| 8 | 40 |
12.7%
|
|
| 9 | 13 |
4.1%
|
|
| 10 | Very effective | 9 |
2.9%
|
| 11 | Don't know | 126 |
40.1%
|
| Sysmiss | 54 |