| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
0.7%
|
| 2 | 0 |
0%
|
|
| 3 | 4 |
2.9%
|
|
| 4 | 3 |
2.1%
|
|
| 5 | 1 |
0.7%
|
|
| 6 | 12 |
8.6%
|
|
| 7 | 12 |
8.6%
|
|
| 8 | 24 |
17.1%
|
|
| 9 | 11 |
7.9%
|
|
| 10 | Very effective | 7 |
5%
|
| 11 | Don't know | 65 |
46.4%
|
| Sysmiss | 17 |