| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 22 |
6.6%
|
| 2 | 33 |
9.9%
|
|
| 3 | 61 |
18.4%
|
|
| 4 | 56 |
16.9%
|
|
| 5 | 89 |
26.8%
|
|
| 6 | 35 |
10.5%
|
|
| 7 | 20 |
6%
|
|
| 8 | 7 |
2.1%
|
|
| 9 | 4 |
1.2%
|
|
| 10 | Very effective | 5 |
1.5%
|
| 11 | Don't know | 140 | |
| Sysmiss | 6 |