| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
5.1%
|
| 2 | 5 |
3.6%
|
|
| 3 | 12 |
8.7%
|
|
| 4 | 8 |
5.8%
|
|
| 5 | 18 |
13%
|
|
| 6 | 15 |
10.9%
|
|
| 7 | 22 |
15.9%
|
|
| 8 | 30 |
21.7%
|
|
| 9 | 9 |
6.5%
|
|
| 10 | Very effective | 12 |
8.7%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 141 |