| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 2 |
1.7%
|
|
| 4 | 2 |
1.7%
|
|
| 5 | 12 |
9.9%
|
|
| 6 | 22 |
18.2%
|
|
| 7 | 30 |
24.8%
|
|
| 8 | 33 |
27.3%
|
|
| 9 | 16 |
13.2%
|
|
| 10 | Very effective | 4 |
3.3%
|
| 11 | Don't know | 80 | |
| Sysmiss | 1 |