| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 12 |
6.1%
|
| 2 | 7 |
3.6%
|
|
| 3 | 12 |
6.1%
|
|
| 4 | 12 |
6.1%
|
|
| 5 | 26 |
13.2%
|
|
| 6 | 28 |
14.2%
|
|
| 7 | 26 |
13.2%
|
|
| 8 | 32 |
16.2%
|
|
| 9 | 24 |
12.2%
|
|
| 10 | Very effective | 18 |
9.1%
|
| 11 | Don't know | 61 | |
| Sysmiss | 68 |