| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 0 |
0%
|
|
| 3 | 3 |
1.5%
|
|
| 4 | 9 |
4.4%
|
|
| 5 | 10 |
4.9%
|
|
| 6 | 20 |
9.8%
|
|
| 7 | 27 |
13.2%
|
|
| 8 | 23 |
11.2%
|
|
| 9 | 13 |
6.3%
|
|
| 10 | Very effective | 17 |
8.3%
|
| 11 | Don't know | 83 |
40.5%
|
| Sysmiss | 21 |