| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
5.1%
|
| 2 | 12 |
6.8%
|
|
| 3 | 16 |
9%
|
|
| 4 | 18 |
10.2%
|
|
| 5 | 11 |
6.2%
|
|
| 6 | 12 |
6.8%
|
|
| 7 | 15 |
8.5%
|
|
| 8 | 16 |
9%
|
|
| 9 | 3 |
1.7%
|
|
| 10 | Very effective | 1 |
0.6%
|
| 11 | Don't know | 64 |
36.2%
|
| Sysmiss | 3 |