| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
5.8%
|
| 2 | 4 |
2.9%
|
|
| 3 | 8 |
5.8%
|
|
| 4 | 5 |
3.6%
|
|
| 5 | 18 |
13.1%
|
|
| 6 | 18 |
13.1%
|
|
| 7 | 18 |
13.1%
|
|
| 8 | 25 |
18.2%
|
|
| 9 | 17 |
12.4%
|
|
| 10 | Very effective | 16 |
11.7%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 142 |