| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
3.8%
|
| 2 | 8 |
5.1%
|
|
| 3 | 9 |
5.7%
|
|
| 4 | 8 |
5.1%
|
|
| 5 | 15 |
9.6%
|
|
| 6 | 11 |
7%
|
|
| 7 | 8 |
5.1%
|
|
| 8 | 19 |
12.1%
|
|
| 9 | 16 |
10.2%
|
|
| 10 | Very effective | 14 |
8.9%
|
| 11 | Don't know | 43 |
27.4%
|
| 12 | Not applicable | 0 |
0%
|
| Sysmiss | 50 |