| Value | Category | Cases | |
|---|---|---|---|
| -99 | 6 |
2%
|
|
| 1 | Not effective at all | 15 |
4.9%
|
| 2 | 19 |
6.2%
|
|
| 3 | 24 |
7.8%
|
|
| 4 | 19 |
6.2%
|
|
| 5 | 23 |
7.5%
|
|
| 6 | 23 |
7.5%
|
|
| 7 | 20 |
6.5%
|
|
| 8 | 12 |
3.9%
|
|
| 9 | 15 |
4.9%
|
|
| 10 | Very effective | 27 |
8.8%
|
| 11 | Don't know | 104 |
33.9%
|
| Sysmiss | 19 |