| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 2 |
2.6%
|
|
| 5 | 3 |
3.9%
|
|
| 6 | 12 |
15.6%
|
|
| 7 | 19 |
24.7%
|
|
| 8 | 22 |
28.6%
|
|
| 9 | 14 |
18.2%
|
|
| 10 | Very effective | 5 |
6.5%
|
| -99 | 6 | ||
| 11 | Don't know | 66 | |
| Sysmiss | 8 |