| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 3 |
1.8%
|
|
| 3 | 4 |
2.4%
|
|
| 4 | 7 |
4.2%
|
|
| 5 | 22 |
13.1%
|
|
| 6 | 20 |
11.9%
|
|
| 7 | 48 |
28.6%
|
|
| 8 | 42 |
25%
|
|
| 9 | 20 |
11.9%
|
|
| 10 | Very effective | 2 |
1.2%
|
| 11 | Don't know | 178 | |
| Sysmiss | 14 |