| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 4 | 7 |
7.9%
|
|
| 5 | 7 |
7.9%
|
|
| 6 | 7 |
7.9%
|
|
| 7 | 26 |
29.2%
|
|
| 8 | 27 |
30.3%
|
|
| 9 | 10 |
11.2%
|
|
| 10 | Very effective | 5 |
5.6%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 58 |