| Value | Category | Cases | |
|---|---|---|---|
| -99 | 9 |
3%
|
|
| 1 | Not effective at all | 18 |
6%
|
| 2 | 18 |
6%
|
|
| 3 | 16 |
5.4%
|
|
| 4 | 11 |
3.7%
|
|
| 5 | 21 |
7%
|
|
| 6 | 17 |
5.7%
|
|
| 7 | 20 |
6.7%
|
|
| 8 | 19 |
6.4%
|
|
| 9 | 22 |
7.4%
|
|
| 10 | Very effective | 36 |
12.1%
|
| 11 | Don't know | 91 |
30.5%
|
| Sysmiss | 28 |