| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
2.8%
|
| 2 | 5 |
3.5%
|
|
| 3 | 4 |
2.8%
|
|
| 4 | 4 |
2.8%
|
|
| 5 | 10 |
7%
|
|
| 6 | 17 |
12%
|
|
| 7 | 19 |
13.4%
|
|
| 8 | 19 |
13.4%
|
|
| 9 | 2 |
1.4%
|
|
| 10 | Very effective | 6 |
4.2%
|
| 11 | Don't know | 52 |
36.6%
|
| Sysmiss | 7 |