| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
5%
|
| 2 | 11 |
5%
|
|
| 3 | 18 |
8.3%
|
|
| 4 | 13 |
6%
|
|
| 5 | 20 |
9.2%
|
|
| 6 | 22 |
10.1%
|
|
| 7 | 34 |
15.6%
|
|
| 8 | 29 |
13.3%
|
|
| 9 | 34 |
15.6%
|
|
| 10 | Very effective | 26 |
11.9%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 173 |