| Value | Category | Cases | |
|---|---|---|---|
| -99 | 4 |
1.3%
|
|
| 1 | Not effective at all | 20 |
6.6%
|
| 2 | 13 |
4.3%
|
|
| 3 | 15 |
5%
|
|
| 4 | 30 |
9.9%
|
|
| 5 | 23 |
7.6%
|
|
| 6 | 41 |
13.5%
|
|
| 7 | 35 |
11.6%
|
|
| 8 | 22 |
7.3%
|
|
| 9 | 20 |
6.6%
|
|
| 10 | Very effective | 10 |
3.3%
|
| 11 | Don't know | 70 |
23.1%
|
| Sysmiss | 4 |