| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
0.9%
|
|
| 3 | 4 |
1.7%
|
|
| 4 | 6 |
2.6%
|
|
| 5 | 10 |
4.3%
|
|
| 6 | 14 |
6%
|
|
| 7 | 17 |
7.3%
|
|
| 8 | 24 |
10.3%
|
|
| 9 | 35 |
15.1%
|
|
| 10 | Very effective | 13 |
5.6%
|
| 11 | Don't know | 107 |
46.1%
|
| Sysmiss | 3 |