| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
2.6%
|
| 2 | 2 |
2.6%
|
|
| 3 | 4 |
5.1%
|
|
| 4 | 4 |
5.1%
|
|
| 5 | 7 |
9%
|
|
| 6 | 8 |
10.3%
|
|
| 7 | 14 |
17.9%
|
|
| 8 | 17 |
21.8%
|
|
| 9 | 16 |
20.5%
|
|
| 10 | Very effective | 4 |
5.1%
|
| -99 | 11 | ||
| 11 | Don't know | 78 | |
| Sysmiss | 16 |