| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 23 |
8.7%
|
| 2 | 15 |
5.7%
|
|
| 3 | 25 |
9.5%
|
|
| 4 | 31 |
11.7%
|
|
| 5 | 21 |
8%
|
|
| 6 | 20 |
7.6%
|
|
| 7 | 19 |
7.2%
|
|
| 8 | 12 |
4.5%
|
|
| 9 | 10 |
3.8%
|
|
| 10 | Very effective | 18 |
6.8%
|
| 11 | Don't know | 70 |
26.5%
|
| Sysmiss | 41 |