| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
4.6%
|
| 2 | 11 |
7.3%
|
|
| 3 | 5 |
3.3%
|
|
| 4 | 9 |
6%
|
|
| 5 | 9 |
6%
|
|
| 6 | 23 |
15.2%
|
|
| 7 | 23 |
15.2%
|
|
| 8 | 25 |
16.6%
|
|
| 9 | 26 |
17.2%
|
|
| 10 | Very effective | 13 |
8.6%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 242 |