| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
1.2%
|
| 2 | 3 |
1.8%
|
|
| 3 | 1 |
0.6%
|
|
| 4 | 5 |
3%
|
|
| 5 | 11 |
6.5%
|
|
| 6 | 17 |
10.1%
|
|
| 7 | 24 |
14.2%
|
|
| 8 | 23 |
13.6%
|
|
| 9 | 5 |
3%
|
|
| 10 | Very effective | 8 |
4.7%
|
| 11 | Don't know | 70 |
41.4%
|
| Sysmiss | 17 |