| Value | Category | Cases | |
|---|---|---|---|
| -99 | 4 |
2%
|
|
| 1 | Not effective at all | 7 |
3.5%
|
| 2 | 9 |
4.5%
|
|
| 3 | 8 |
4%
|
|
| 4 | 23 |
11.4%
|
|
| 5 | 31 |
15.4%
|
|
| 6 | 25 |
12.4%
|
|
| 7 | 25 |
12.4%
|
|
| 8 | 15 |
7.5%
|
|
| 9 | 12 |
6%
|
|
| 10 | Very effective | 3 |
1.5%
|
| 11 | Don't know | 39 |
19.4%
|
| Sysmiss | 24 |