| Value | Category | Cases | |
|---|---|---|---|
| -99 | 10 |
4.7%
|
|
| 1 | Not effective at all | 3 |
1.4%
|
| 2 | 0 |
0%
|
|
| 3 | 5 |
2.4%
|
|
| 4 | 12 |
5.7%
|
|
| 5 | 17 |
8%
|
|
| 6 | 19 |
9%
|
|
| 7 | 19 |
9%
|
|
| 8 | 18 |
8.5%
|
|
| 9 | 10 |
4.7%
|
|
| 10 | Very effective | 7 |
3.3%
|
| 11 | Don't know | 92 |
43.4%
|
| Sysmiss | 8 |