| Value | Category | Cases | |
|---|---|---|---|
| -99 | 2 |
1%
|
|
| 1 | Not effective at all | 11 |
5.4%
|
| 2 | 7 |
3.4%
|
|
| 3 | 9 |
4.4%
|
|
| 4 | 26 |
12.8%
|
|
| 5 | 18 |
8.9%
|
|
| 6 | 28 |
13.8%
|
|
| 7 | 19 |
9.4%
|
|
| 8 | 15 |
7.4%
|
|
| 9 | 17 |
8.4%
|
|
| 10 | Very effective | 2 |
1%
|
| 11 | Don't know | 49 |
24.1%
|
| Sysmiss | 22 |