| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
2.2%
|
| 2 | 6 |
2.6%
|
|
| 3 | 7 |
3%
|
|
| 4 | 10 |
4.3%
|
|
| 5 | 20 |
8.7%
|
|
| 6 | 30 |
13%
|
|
| 7 | 34 |
14.7%
|
|
| 8 | 44 |
19%
|
|
| 9 | 30 |
13%
|
|
| 10 | Very effective | 12 |
5.2%
|
| 11 | Don't know | 33 |
14.3%
|
| Sysmiss | 17 |