| Value | Category | Cases | |
|---|---|---|---|
| -99 | 8 |
2%
|
|
| 1 | Not effective at all | 4 |
1%
|
| 2 | 9 |
2.3%
|
|
| 3 | 15 |
3.8%
|
|
| 4 | 20 |
5%
|
|
| 5 | 33 |
8.3%
|
|
| 6 | 28 |
7.1%
|
|
| 7 | 43 |
10.8%
|
|
| 8 | 28 |
7.1%
|
|
| 9 | 19 |
4.8%
|
|
| 10 | Very effective | 11 |
2.8%
|
| 11 | Don't know | 179 |
45.1%
|
| Sysmiss | 10 |