| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
8.1%
|
| 2 | 2 |
5.4%
|
|
| 3 | 2 |
5.4%
|
|
| 4 | 3 |
8.1%
|
|
| 5 | 6 |
16.2%
|
|
| 6 | 2 |
5.4%
|
|
| 7 | 6 |
16.2%
|
|
| 8 | 2 |
5.4%
|
|
| 9 | 8 |
21.6%
|
|
| 10 | Very effective | 3 |
8.1%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 72 |