| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
5%
|
| 2 | 2 |
3.3%
|
|
| 3 | 2 |
3.3%
|
|
| 4 | 5 |
8.3%
|
|
| 5 | 9 |
15%
|
|
| 6 | 3 |
5%
|
|
| 7 | 12 |
20%
|
|
| 8 | 17 |
28.3%
|
|
| 9 | 5 |
8.3%
|
|
| 10 | Very effective | 2 |
3.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 88 |