| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 41 |
17.1%
|
| 2 | 15 |
6.3%
|
|
| 3 | 6 |
2.5%
|
|
| 4 | 25 |
10.4%
|
|
| 5 | 31 |
12.9%
|
|
| 6 | 26 |
10.8%
|
|
| 7 | 34 |
14.2%
|
|
| 8 | 25 |
10.4%
|
|
| 9 | 15 |
6.3%
|
|
| 10 | Very effective | 22 |
9.2%
|
| 11 | Don't know | 72 | |
| Sysmiss | 14 |