| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 1 |
0.6%
|
|
| 3 | 2 |
1.3%
|
|
| 4 | 7 |
4.5%
|
|
| 5 | 8 |
5.2%
|
|
| 6 | 9 |
5.8%
|
|
| 7 | 24 |
15.5%
|
|
| 8 | 40 |
25.8%
|
|
| 9 | 35 |
22.6%
|
|
| 10 | Very effective | 19 |
12.3%
|
| 11 | Don’t know | 10 |
6.5%
|
| Sysmiss | 10 |