| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 7 |
3%
|
| 2 | 5 |
2.2%
|
|
| 3 | 10 |
4.3%
|
|
| 4 | 16 |
6.9%
|
|
| 5 | 24 |
10.3%
|
|
| 6 | 21 |
9.1%
|
|
| 7 | 33 |
14.2%
|
|
| 8 | 42 |
18.1%
|
|
| 9 | 26 |
11.2%
|
|
| 10 | Very effective | 13 |
5.6%
|
| 11 | Don't know | 35 |
15.1%
|
| Sysmiss | 16 |