| Value | Category | Cases | |
|---|---|---|---|
| -99 | 94 |
31.8%
|
|
| 1 | Not effective at all | 21 |
7.1%
|
| 2 | 10 |
3.4%
|
|
| 3 | 20 |
6.8%
|
|
| 4 | 12 |
4.1%
|
|
| 5 | 16 |
5.4%
|
|
| 6 | 11 |
3.7%
|
|
| 7 | 10 |
3.4%
|
|
| 8 | 14 |
4.7%
|
|
| 9 | 10 |
3.4%
|
|
| 10 | Very effective | 29 |
9.8%
|
| 11 | Don't know | 49 |
16.6%
|
| Sysmiss | 79 |