| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 13 |
6.1%
|
| 2 | 10 |
4.7%
|
|
| 3 | 14 |
6.6%
|
|
| 4 | 20 |
9.4%
|
|
| 5 | 38 |
17.8%
|
|
| 6 | 19 |
8.9%
|
|
| 7 | 29 |
13.6%
|
|
| 8 | 40 |
18.8%
|
|
| 9 | 19 |
8.9%
|
|
| 10 | Very effective | 11 |
5.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 66 |