| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
7%
|
| 2 | 8 |
5.1%
|
|
| 3 | 11 |
7%
|
|
| 4 | 8 |
5.1%
|
|
| 5 | 13 |
8.3%
|
|
| 6 | 11 |
7%
|
|
| 7 | 16 |
10.2%
|
|
| 8 | 11 |
7%
|
|
| 9 | 12 |
7.6%
|
|
| 10 | Very effective | 4 |
2.5%
|
| 11 | Don't know | 4 |
2.5%
|
| 12 | Not applicable | 48 |
30.6%
|
| Sysmiss | 50 |