| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 13 |
6.3%
|
| 2 | 36 |
17.5%
|
|
| 3 | 42 |
20.4%
|
|
| 4 | 21 |
10.2%
|
|
| 5 | 30 |
14.6%
|
|
| 6 | 22 |
10.7%
|
|
| 7 | 21 |
10.2%
|
|
| 8 | 10 |
4.9%
|
|
| 9 | 6 |
2.9%
|
|
| 10 | Very effective | 5 |
2.4%
|
| 11 | Don't know | 89 | |
| Sysmiss | 8 |