| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 3 |
0.9%
|
|
| 4 | 11 |
3.2%
|
|
| 5 | 47 |
13.8%
|
|
| 6 | 64 |
18.8%
|
|
| 7 | 69 |
20.3%
|
|
| 8 | 52 |
15.3%
|
|
| 9 | 47 |
13.8%
|
|
| 10 | Very effective | 47 |
13.8%
|
| 11 | Don't know | 61 | |
| Sysmiss | 22 |