| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
3.4%
|
| 2 | 6 |
2.9%
|
|
| 3 | 8 |
3.8%
|
|
| 4 | 8 |
3.8%
|
|
| 5 | 21 |
10.1%
|
|
| 6 | 9 |
4.3%
|
|
| 7 | 25 |
12%
|
|
| 8 | 18 |
8.7%
|
|
| 9 | 9 |
4.3%
|
|
| 10 | Very effective | 7 |
3.4%
|
| 11 | Don't know | 90 |
43.3%
|
| Sysmiss | 17 |