| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
3%
|
| 2 | 6 |
9%
|
|
| 3 | 2 |
3%
|
|
| 4 | 6 |
9%
|
|
| 5 | 12 |
17.9%
|
|
| 6 | 10 |
14.9%
|
|
| 7 | 8 |
11.9%
|
|
| 8 | 9 |
13.4%
|
|
| 9 | 5 |
7.5%
|
|
| 10 | Very effective | 7 |
10.4%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 42 |