| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
2.8%
|
| 2 | 3 |
2.1%
|
|
| 3 | 5 |
3.5%
|
|
| 4 | 5 |
3.5%
|
|
| 5 | 6 |
4.2%
|
|
| 6 | 16 |
11.3%
|
|
| 7 | 13 |
9.2%
|
|
| 8 | 11 |
7.7%
|
|
| 9 | 7 |
4.9%
|
|
| 10 | Very effective | 3 |
2.1%
|
| 11 | Don't know | 69 |
48.6%
|
| Sysmiss | 7 |