| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 6 |
2%
|
| 2 | 5 |
1.7%
|
|
| 3 | 13 |
4.3%
|
|
| 4 | 23 |
7.6%
|
|
| 5 | 41 |
13.6%
|
|
| 6 | 35 |
11.6%
|
|
| 7 | 36 |
12%
|
|
| 8 | 25 |
8.3%
|
|
| 9 | 12 |
4%
|
|
| 10 | Very effective | 4 |
1.3%
|
| 11 | Don't know | 101 |
33.6%
|
| Sysmiss | 67 |