| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 25 |
9.6%
|
| 2 | 22 |
8.5%
|
|
| 3 | 15 |
5.8%
|
|
| 4 | 23 |
8.8%
|
|
| 5 | 21 |
8.1%
|
|
| 6 | 13 |
5%
|
|
| 7 | 12 |
4.6%
|
|
| 8 | 8 |
3.1%
|
|
| 9 | 4 |
1.5%
|
|
| 10 | Very effective | 16 |
6.2%
|
| 11 | Don't know | 101 |
38.8%
|
| Sysmiss | 45 |