| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
10.9%
|
| 2 | 3 |
3.3%
|
|
| 3 | 8 |
8.7%
|
|
| 4 | 5 |
5.4%
|
|
| 5 | 9 |
9.8%
|
|
| 6 | 8 |
8.7%
|
|
| 7 | 3 |
3.3%
|
|
| 8 | 21 |
22.8%
|
|
| 9 | 12 |
13%
|
|
| 10 | Very effective | 13 |
14.1%
|
| 11 | Don't know | 61 | |
| Sysmiss | 27 |