| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 2 |
0.9%
|
|
| 4 | 4 |
1.8%
|
|
| 5 | 14 |
6.1%
|
|
| 6 | 13 |
5.7%
|
|
| 7 | 16 |
7%
|
|
| 8 | 39 |
17.1%
|
|
| 9 | 30 |
13.2%
|
|
| 10 | Very effective | 21 |
9.2%
|
| 11 | Don't know | 89 |
39%
|
| Sysmiss | 7 |