| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 40 |
20.4%
|
| 2 | 15 |
7.7%
|
|
| 3 | 16 |
8.2%
|
|
| 4 | 22 |
11.2%
|
|
| 5 | 31 |
15.8%
|
|
| 6 | 17 |
8.7%
|
|
| 7 | 9 |
4.6%
|
|
| 8 | 14 |
7.1%
|
|
| 9 | 13 |
6.6%
|
|
| 10 | Very effective | 19 |
9.7%
|
| 11 | Don't know | 196 | |
| Sysmiss | 38 |