| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
1.4%
|
| 2 | 2 |
1.4%
|
|
| 3 | 4 |
2.7%
|
|
| 4 | 0 |
0%
|
|
| 5 | 8 |
5.4%
|
|
| 6 | 11 |
7.4%
|
|
| 7 | 12 |
8.1%
|
|
| 8 | 10 |
6.8%
|
|
| 9 | 4 |
2.7%
|
|
| 10 | Very effective | 4 |
2.7%
|
| 11 | Don't know | 91 |
61.5%
|
| Sysmiss | 11 |