| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
2.6%
|
| 2 | 2 |
2.6%
|
|
| 3 | 2 |
2.6%
|
|
| 4 | 1 |
1.3%
|
|
| 5 | 5 |
6.4%
|
|
| 6 | 11 |
14.1%
|
|
| 7 | 14 |
17.9%
|
|
| 8 | 19 |
24.4%
|
|
| 9 | 17 |
21.8%
|
|
| 10 | Very effective | 5 |
6.4%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 56 |