| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
3.6%
|
| 2 | 5 |
2.6%
|
|
| 3 | 13 |
6.8%
|
|
| 4 | 14 |
7.3%
|
|
| 5 | 22 |
11.5%
|
|
| 6 | 21 |
10.9%
|
|
| 7 | 20 |
10.4%
|
|
| 8 | 22 |
11.5%
|
|
| 9 | 25 |
13%
|
|
| 10 | Very effective | 43 |
22.4%
|
| 11 | Don't know | 74 | |
| Sysmiss | 53 |