| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 1 |
2.4%
|
| 3 | 1 |
2.4%
|
|
| 4 | 3 |
7.1%
|
|
| 5 | 8 |
19%
|
|
| 6 | 5 |
11.9%
|
|
| 7 | 12 |
28.6%
|
|
| 8 | 5 |
11.9%
|
|
| 9 | 4 |
9.5%
|
|
| 10 | Very effective | 3 |
7.1%
|
| -99 | 4 | ||
| 11 | Don't know | 45 | |
| Sysmiss | 18 |