| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 1 |
1.9%
|
|
| 4 | 1 |
1.9%
|
|
| 5 | 2 |
3.8%
|
|
| 6 | 2 |
3.8%
|
|
| 7 | 7 |
13.2%
|
|
| 8 | 17 |
32.1%
|
|
| 9 | 13 |
24.5%
|
|
| 10 | Very effective | 10 |
18.9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 111 |