| Value | Category | Cases | |
|---|---|---|---|
| -99 | 8 |
2.6%
|
|
| 1 | Not effective at all | 12 |
4%
|
| 2 | 12 |
4%
|
|
| 3 | 11 |
3.6%
|
|
| 4 | 28 |
9.2%
|
|
| 5 | 34 |
11.2%
|
|
| 6 | 19 |
6.3%
|
|
| 7 | 13 |
4.3%
|
|
| 8 | 15 |
5%
|
|
| 9 | 15 |
5%
|
|
| 10 | Very effective | 28 |
9.2%
|
| 11 | Don't know | 108 |
35.6%
|
| Sysmiss | 23 |