| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 5 | 3 |
6.8%
|
|
| 6 | 6 |
13.6%
|
|
| 7 | 18 |
40.9%
|
|
| 8 | 7 |
15.9%
|
|
| 9 | 5 |
11.4%
|
|
| 10 | Very effective | 5 |
11.4%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 63 |