| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
2.6%
|
| 2 | 2 |
1%
|
|
| 3 | 0 |
0%
|
|
| 4 | 6 |
3.1%
|
|
| 5 | 12 |
6.2%
|
|
| 6 | 21 |
10.8%
|
|
| 7 | 19 |
9.8%
|
|
| 8 | 15 |
7.7%
|
|
| 9 | 7 |
3.6%
|
|
| 10 | Very effective | 3 |
1.5%
|
| 11 | Don't know | 104 |
53.6%
|
| Sysmiss | 9 |