| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 12 |
3.6%
|
| 2 | 12 |
3.6%
|
|
| 3 | 14 |
4.2%
|
|
| 4 | 34 |
10.1%
|
|
| 5 | 37 |
11%
|
|
| 6 | 47 |
14%
|
|
| 7 | 44 |
13.1%
|
|
| 8 | 23 |
6.8%
|
|
| 9 | 24 |
7.1%
|
|
| 10 | Very effective | 34 |
10.1%
|
| 11 | Don't know | 55 |
16.4%
|
| Sysmiss | 18 |