| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 41 |
15.8%
|
| 2 | 18 |
6.9%
|
|
| 3 | 24 |
9.3%
|
|
| 4 | 21 |
8.1%
|
|
| 5 | 42 |
16.2%
|
|
| 6 | 16 |
6.2%
|
|
| 7 | 28 |
10.8%
|
|
| 8 | 24 |
9.3%
|
|
| 9 | 12 |
4.6%
|
|
| 10 | Very effective | 33 |
12.7%
|
| 11 | Don't know | 128 | |
| Sysmiss | 43 |