| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 6 |
4.1%
|
|
| 3 | 11 |
7.5%
|
|
| 4 | 8 |
5.4%
|
|
| 5 | 38 |
25.9%
|
|
| 6 | 36 |
24.5%
|
|
| 7 | 19 |
12.9%
|
|
| 8 | 14 |
9.5%
|
|
| 9 | 10 |
6.8%
|
|
| 10 | Very effective | 5 |
3.4%
|
| 11 | Don't know | 18 | |
| Sysmiss | 38 |