| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
1.7%
|
| 2 | 1 |
0.6%
|
|
| 4 | 14 |
7.8%
|
|
| 5 | 22 |
12.3%
|
|
| 6 | 24 |
13.4%
|
|
| 7 | 34 |
19%
|
|
| 8 | 39 |
21.8%
|
|
| 9 | 28 |
15.6%
|
|
| 10 | Very effective | 14 |
7.8%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 71 |