| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
2%
|
| 2 | 7 |
2.7%
|
|
| 3 | 12 |
4.7%
|
|
| 4 | 10 |
3.9%
|
|
| 5 | 24 |
9.4%
|
|
| 6 | 13 |
5.1%
|
|
| 7 | 15 |
5.9%
|
|
| 8 | 12 |
4.7%
|
|
| 9 | 12 |
4.7%
|
|
| 10 | Very effective | 20 |
7.8%
|
| 11 | Don't know | 126 |
49.2%
|
| Sysmiss | 37 |