| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
5%
|
| 2 | 2 |
2.5%
|
|
| 3 | 15 |
18.8%
|
|
| 4 | 27 |
33.8%
|
|
| 5 | 13 |
16.3%
|
|
| 6 | 6 |
7.5%
|
|
| 7 | 8 |
10%
|
|
| 8 | 3 |
3.8%
|
|
| 9 | 2 |
2.5%
|
|
| 10 | Very effective | 0 |
0%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 73 |