| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 1 |
1.4%
|
|
| 3 | 3 |
4.2%
|
|
| 4 | 3 |
4.2%
|
|
| 5 | 5 |
6.9%
|
|
| 6 | 7 |
9.7%
|
|
| 7 | 20 |
27.8%
|
|
| 8 | 14 |
19.4%
|
|
| 9 | 13 |
18.1%
|
|
| 10 | Very effective | 6 |
8.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 66 |