| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 13 |
6.7%
|
| 2 | 9 |
4.7%
|
|
| 3 | 14 |
7.3%
|
|
| 4 | 20 |
10.4%
|
|
| 5 | 22 |
11.4%
|
|
| 6 | 33 |
17.1%
|
|
| 7 | 32 |
16.6%
|
|
| 8 | 33 |
17.1%
|
|
| 9 | 9 |
4.7%
|
|
| 10 | Very effective | 8 |
4.1%
|
| 11 | Don't know | 69 | |
| Sysmiss | 64 |