| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 9 |
4.2%
|
| 2 | 10 |
4.7%
|
|
| 3 | 6 |
2.8%
|
|
| 4 | 8 |
3.7%
|
|
| 5 | 15 |
7%
|
|
| 6 | 15 |
7%
|
|
| 7 | 16 |
7.4%
|
|
| 8 | 28 |
13%
|
|
| 9 | 12 |
5.6%
|
|
| 10 | Very effective | 9 |
4.2%
|
| 11 | Don't know | 87 |
40.5%
|
| Sysmiss | 10 |