| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 1 |
0.7%
|
|
| 3 | 3 |
2.1%
|
|
| 4 | 4 |
2.8%
|
|
| 5 | 10 |
7.1%
|
|
| 6 | 19 |
13.5%
|
|
| 7 | 36 |
25.5%
|
|
| 8 | 39 |
27.7%
|
|
| 9 | 18 |
12.8%
|
|
| 10 | Very effective | 11 |
7.8%
|
| 11 | Don't know | 36 | |
| Sysmiss | 16 |