| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 35 |
16.4%
|
| 2 | 13 |
6.1%
|
|
| 3 | 31 |
14.6%
|
|
| 4 | 21 |
9.9%
|
|
| 5 | 25 |
11.7%
|
|
| 6 | 28 |
13.1%
|
|
| 7 | 18 |
8.5%
|
|
| 8 | 13 |
6.1%
|
|
| 9 | 12 |
5.6%
|
|
| 10 | Very effective | 17 |
8%
|
| 11 | Don't know | 180 | |
| Sysmiss | 37 |