| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
7%
|
| 2 | 4 |
2.5%
|
|
| 3 | 11 |
7%
|
|
| 4 | 12 |
7.6%
|
|
| 5 | 11 |
7%
|
|
| 6 | 17 |
10.8%
|
|
| 7 | 13 |
8.3%
|
|
| 8 | 12 |
7.6%
|
|
| 9 | 20 |
12.7%
|
|
| 10 | Very effective | 12 |
7.6%
|
| 11 | Don't know | 34 |
21.7%
|
| 12 | Not applicable | 0 |
0%
|
| Sysmiss | 50 |