| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
1.7%
|
| 2 | 18 |
6.1%
|
|
| 3 | 22 |
7.5%
|
|
| 4 | 24 |
8.2%
|
|
| 5 | 50 |
17%
|
|
| 6 | 25 |
8.5%
|
|
| 7 | 25 |
8.5%
|
|
| 8 | 10 |
3.4%
|
|
| 9 | 4 |
1.4%
|
|
| 10 | Very effective | 8 |
2.7%
|
| 11 | Don't know | 103 |
35%
|
| Sysmiss | 7 |