| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 1 |
0.4%
|
|
| 3 | 2 |
0.9%
|
|
| 4 | 6 |
2.7%
|
|
| 5 | 11 |
4.9%
|
|
| 6 | 11 |
4.9%
|
|
| 7 | 28 |
12.6%
|
|
| 8 | 39 |
17.5%
|
|
| 9 | 31 |
13.9%
|
|
| 10 | Very effective | 17 |
7.6%
|
| 11 | Don't know | 77 |
34.5%
|
| Sysmiss | 12 |