| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 2 |
2.2%
|
|
| 4 | 1 |
1.1%
|
|
| 5 | 8 |
8.9%
|
|
| 6 | 5 |
5.6%
|
|
| 7 | 22 |
24.4%
|
|
| 8 | 25 |
27.8%
|
|
| 9 | 18 |
20%
|
|
| 10 | Very effective | 9 |
10%
|
| 11 | Don't know | 9 | |
| Sysmiss | 10 |