| Value | Category | Cases | |
|---|---|---|---|
| -99 | 8 |
2%
|
|
| 1 | Not effective at all | 6 |
1.5%
|
| 2 | 13 |
3.3%
|
|
| 3 | 23 |
5.8%
|
|
| 4 | 22 |
5.5%
|
|
| 5 | 34 |
8.5%
|
|
| 6 | 35 |
8.8%
|
|
| 7 | 24 |
6%
|
|
| 8 | 30 |
7.5%
|
|
| 9 | 25 |
6.3%
|
|
| 10 | Very effective | 17 |
4.3%
|
| 11 | Don't know | 161 |
40.5%
|
| Sysmiss | 9 |