| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 31 |
18.8%
|
| 2 | 12 |
7.3%
|
|
| 3 | 9 |
5.5%
|
|
| 4 | 10 |
6.1%
|
|
| 5 | 18 |
10.9%
|
|
| 6 | 14 |
8.5%
|
|
| 7 | 13 |
7.9%
|
|
| 8 | 12 |
7.3%
|
|
| 9 | 9 |
5.5%
|
|
| 10 | Very effective | 37 |
22.4%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 177 |