| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 5 |
4.6%
|
|
| 4 | 7 |
6.4%
|
|
| 5 | 13 |
11.9%
|
|
| 6 | 17 |
15.6%
|
|
| 7 | 20 |
18.3%
|
|
| 8 | 24 |
22%
|
|
| 9 | 10 |
9.2%
|
|
| 10 | Very effective | 13 |
11.9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 4 |