| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 14 |
3%
|
| 2 | 11 |
2.3%
|
|
| 3 | 37 |
7.9%
|
|
| 4 | 49 |
10.4%
|
|
| 5 | 79 |
16.8%
|
|
| 6 | 89 |
19%
|
|
| 7 | 91 |
19.4%
|
|
| 8 | 66 |
14.1%
|
|
| 9 | 19 |
4.1%
|
|
| 10 | Very effective | 14 |
3%
|
| 11 | Don't know | 8 | |
| Sysmiss | 1 |