| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 3 |
1.3%
|
|
| 3 | 6 |
2.6%
|
|
| 4 | 8 |
3.4%
|
|
| 5 | 15 |
6.5%
|
|
| 6 | 14 |
6%
|
|
| 7 | 22 |
9.5%
|
|
| 8 | 24 |
10.3%
|
|
| 9 | 21 |
9.1%
|
|
| 10 | Very effective | 13 |
5.6%
|
| 11 | Don't know | 106 |
45.7%
|
| Sysmiss | 3 |