| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
2.5%
|
| 2 | 6 |
3%
|
|
| 3 | 13 |
6.6%
|
|
| 4 | 12 |
6.1%
|
|
| 5 | 21 |
10.7%
|
|
| 6 | 20 |
10.2%
|
|
| 7 | 30 |
15.2%
|
|
| 8 | 27 |
13.7%
|
|
| 9 | 22 |
11.2%
|
|
| 10 | Very effective | 41 |
20.8%
|
| 11 | Don't know | 72 | |
| Sysmiss | 50 |