| Value | Category | Cases | |
|---|---|---|---|
| -99 | 7 |
3.8%
|
|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 4 |
2.2%
|
|
| 4 | 6 |
3.3%
|
|
| 5 | 12 |
6.6%
|
|
| 6 | 28 |
15.3%
|
|
| 7 | 25 |
13.7%
|
|
| 8 | 27 |
14.8%
|
|
| 9 | 15 |
8.2%
|
|
| 10 | Very effective | 4 |
2.2%
|
| 11 | Don't know | 55 |
30.1%
|
| Sysmiss | 82 |