| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
4.8%
|
| 2 | 16 |
9.6%
|
|
| 3 | 20 |
12%
|
|
| 4 | 17 |
10.2%
|
|
| 5 | 26 |
15.7%
|
|
| 6 | 21 |
12.7%
|
|
| 7 | 19 |
11.4%
|
|
| 8 | 23 |
13.9%
|
|
| 9 | 5 |
3%
|
|
| 10 | Very effective | 11 |
6.6%
|
| 11 | Don't know | 57 | |
| Sysmiss | 39 |