| Value | Category | Cases | |
|---|---|---|---|
| -99 | 6 |
2.6%
|
|
| 1 | Not effective at all | 5 |
2.2%
|
| 2 | 5 |
2.2%
|
|
| 3 | 9 |
3.9%
|
|
| 4 | 14 |
6.1%
|
|
| 5 | 27 |
11.8%
|
|
| 6 | 17 |
7.4%
|
|
| 7 | 21 |
9.2%
|
|
| 8 | 16 |
7%
|
|
| 9 | 12 |
5.2%
|
|
| 10 | Very effective | 12 |
5.2%
|
| 11 | Don't know | 85 |
37.1%
|
| Sysmiss | 8 |