| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
5%
|
| 2 | 2 |
3.3%
|
|
| 3 | 1 |
1.7%
|
|
| 4 | 2 |
3.3%
|
|
| 5 | 3 |
5%
|
|
| 6 | 6 |
10%
|
|
| 7 | 4 |
6.7%
|
|
| 8 | 14 |
23.3%
|
|
| 9 | 18 |
30%
|
|
| 10 | Very effective | 7 |
11.7%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 104 |