| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 30 |
12.3%
|
| 2 | 18 |
7.4%
|
|
| 3 | 24 |
9.9%
|
|
| 4 | 28 |
11.5%
|
|
| 5 | 15 |
6.2%
|
|
| 6 | 10 |
4.1%
|
|
| 7 | 10 |
4.1%
|
|
| 8 | 5 |
2.1%
|
|
| 9 | 5 |
2.1%
|
|
| 10 | Very effective | 7 |
2.9%
|
| 11 | Don't know | 91 |
37.4%
|
| Sysmiss | 62 |