| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
2.6%
|
| 2 | 5 |
1.6%
|
|
| 3 | 15 |
4.8%
|
|
| 4 | 33 |
10.6%
|
|
| 5 | 56 |
18.1%
|
|
| 6 | 34 |
11%
|
|
| 7 | 28 |
9%
|
|
| 8 | 25 |
8.1%
|
|
| 9 | 4 |
1.3%
|
|
| 10 | Very effective | 6 |
1.9%
|
| 11 | Don't know | 96 |
31%
|
| Sysmiss | 58 |