| Value | Category | Cases | |
|---|---|---|---|
| -99 | 10 |
4.7%
|
|
| 1 | Not effective at all | 5 |
2.4%
|
| 2 | 3 |
1.4%
|
|
| 3 | 6 |
2.8%
|
|
| 4 | 15 |
7.1%
|
|
| 5 | 25 |
11.8%
|
|
| 6 | 16 |
7.6%
|
|
| 7 | 21 |
10%
|
|
| 8 | 11 |
5.2%
|
|
| 9 | 8 |
3.8%
|
|
| 10 | Very effective | 7 |
3.3%
|
| 11 | Don't know | 84 |
39.8%
|
| Sysmiss | 9 |