| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
1.9%
|
| 2 | 6 |
1.9%
|
|
| 3 | 25 |
8.1%
|
|
| 4 | 32 |
10.3%
|
|
| 5 | 42 |
13.5%
|
|
| 6 | 36 |
11.6%
|
|
| 7 | 37 |
11.9%
|
|
| 8 | 36 |
11.6%
|
|
| 9 | 16 |
5.2%
|
|
| 10 | Very effective | 9 |
2.9%
|
| 11 | Don't know | 65 |
21%
|
| Sysmiss | 58 |