| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
3%
|
|
| 3 | 3 |
4.5%
|
|
| 4 | 3 |
4.5%
|
|
| 5 | 7 |
10.4%
|
|
| 6 | 10 |
14.9%
|
|
| 7 | 23 |
34.3%
|
|
| 8 | 12 |
17.9%
|
|
| 9 | 5 |
7.5%
|
|
| 10 | Very effective | 2 |
3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 46 |