| Value | Category | Cases | |
|---|---|---|---|
| -99 | 11 |
3.6%
|
|
| 1 | Not effective at all | 7 |
2.3%
|
| 2 | 10 |
3.2%
|
|
| 3 | 6 |
1.9%
|
|
| 4 | 20 |
6.5%
|
|
| 5 | 21 |
6.8%
|
|
| 6 | 24 |
7.8%
|
|
| 7 | 20 |
6.5%
|
|
| 8 | 23 |
7.4%
|
|
| 9 | 10 |
3.2%
|
|
| 10 | Very effective | 3 |
1%
|
| 11 | Don’t know | 121 |
39.2%
|
| Sysmiss | 33 |
10.7%
|