| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 24 |
9.2%
|
| 2 | 11 |
4.2%
|
|
| 3 | 20 |
7.7%
|
|
| 4 | 28 |
10.7%
|
|
| 5 | 20 |
7.7%
|
|
| 6 | 22 |
8.4%
|
|
| 7 | 19 |
7.3%
|
|
| 8 | 10 |
3.8%
|
|
| 9 | 6 |
2.3%
|
|
| 10 | Very effective | 21 |
8%
|
| 11 | Don't know | 80 |
30.7%
|
| Sysmiss | 44 |