| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
1.8%
|
| 2 | 17 |
3.8%
|
|
| 3 | 32 |
7.1%
|
|
| 4 | 45 |
10%
|
|
| 5 | 56 |
12.4%
|
|
| 6 | 92 |
20.4%
|
|
| 7 | 88 |
19.6%
|
|
| 8 | 54 |
12%
|
|
| 9 | 47 |
10.4%
|
|
| 10 | Very effective | 11 |
2.4%
|
| 11 | Don't know | 40 | |
| Sysmiss | 15 |