| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
4.7%
|
| 3 | 2 |
3.1%
|
|
| 4 | 6 |
9.4%
|
|
| 5 | 2 |
3.1%
|
|
| 6 | 8 |
12.5%
|
|
| 7 | 13 |
20.3%
|
|
| 8 | 21 |
32.8%
|
|
| 9 | 6 |
9.4%
|
|
| 10 | Very effective | 3 |
4.7%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 84 |