| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
3.7%
|
| 2 | 6 |
4.4%
|
|
| 3 | 17 |
12.6%
|
|
| 4 | 24 |
17.8%
|
|
| 5 | 21 |
15.6%
|
|
| 6 | 22 |
16.3%
|
|
| 7 | 21 |
15.6%
|
|
| 8 | 15 |
11.1%
|
|
| 9 | 1 |
0.7%
|
|
| 10 | Very effective | 3 |
2.2%
|
| 11 | Don't know | 58 | |
| Sysmiss | 5 |