| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 21 |
13.5%
|
| 2 | 11 |
7.1%
|
|
| 3 | 30 |
19.4%
|
|
| 4 | 30 |
19.4%
|
|
| 5 | 10 |
6.5%
|
|
| 6 | 14 |
9%
|
|
| 7 | 14 |
9%
|
|
| 8 | 17 |
11%
|
|
| 9 | 4 |
2.6%
|
|
| 10 | Very effective | 4 |
2.6%
|
| 11 | Don't know | 113 | |
| Sysmiss | 58 |