| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 33 |
17.1%
|
| 2 | 23 |
11.9%
|
|
| 3 | 25 |
13%
|
|
| 4 | 21 |
10.9%
|
|
| 5 | 22 |
11.4%
|
|
| 6 | 14 |
7.3%
|
|
| 7 | 12 |
6.2%
|
|
| 8 | 11 |
5.7%
|
|
| 9 | 12 |
6.2%
|
|
| 10 | Very effective | 20 |
10.4%
|
| 11 | Don't know | 191 | |
| Sysmiss | 46 |