| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
1%
|
|
| 3 | 1 |
0.5%
|
|
| 4 | 5 |
2.5%
|
|
| 5 | 4 |
2%
|
|
| 6 | 16 |
8%
|
|
| 7 | 21 |
10.5%
|
|
| 8 | 17 |
8.5%
|
|
| 9 | 17 |
8.5%
|
|
| 10 | Very effective | 12 |
6%
|
| 11 | Don't know | 105 |
52.5%
|
| Sysmiss | 26 |