| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
3.8%
|
| 2 | 14 |
7.6%
|
|
| 3 | 11 |
5.9%
|
|
| 4 | 14 |
7.6%
|
|
| 5 | 17 |
9.2%
|
|
| 6 | 14 |
7.6%
|
|
| 7 | 19 |
10.3%
|
|
| 8 | 28 |
15.1%
|
|
| 9 | 17 |
9.2%
|
|
| 10 | Very effective | 24 |
13%
|
| 11 | Don't know | 20 |
10.8%
|
| 12 | Not applicable | 0 |
0%
|
| Sysmiss | 22 |