| Value | Category | Cases | |
|---|---|---|---|
| -99 | 9 |
3.8%
|
|
| 1 | Not effective at all | 6 |
2.5%
|
| 2 | 4 |
1.7%
|
|
| 3 | 12 |
5%
|
|
| 4 | 16 |
6.7%
|
|
| 5 | 30 |
12.6%
|
|
| 6 | 30 |
12.6%
|
|
| 7 | 31 |
13%
|
|
| 8 | 26 |
10.9%
|
|
| 9 | 7 |
2.9%
|
|
| 10 | Very effective | 9 |
3.8%
|
| 11 | Don't know | 59 |
24.7%
|
| Sysmiss | 5 |