| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
3.6%
|
| 2 | 11 |
4.9%
|
|
| 3 | 15 |
6.7%
|
|
| 4 | 26 |
11.6%
|
|
| 5 | 32 |
14.3%
|
|
| 6 | 40 |
17.9%
|
|
| 7 | 45 |
20.1%
|
|
| 8 | 34 |
15.2%
|
|
| 9 | 9 |
4%
|
|
| 10 | Very effective | 4 |
1.8%
|
| 11 | Don't know | 30 | |
| Sysmiss | 35 |