| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
2.2%
|
| 2 | 6 |
2.2%
|
|
| 3 | 4 |
1.5%
|
|
| 4 | 11 |
4.1%
|
|
| 5 | 29 |
10.8%
|
|
| 6 | 13 |
4.8%
|
|
| 7 | 11 |
4.1%
|
|
| 8 | 16 |
5.9%
|
|
| 9 | 8 |
3%
|
|
| 10 | Very effective | 17 |
6.3%
|
| 11 | Don't know | 148 |
55%
|
| Sysmiss | 24 |