| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 4 |
1.8%
|
|
| 3 | 10 |
4.5%
|
|
| 4 | 6 |
2.7%
|
|
| 5 | 21 |
9.5%
|
|
| 6 | 29 |
13.2%
|
|
| 7 | 38 |
17.3%
|
|
| 8 | 52 |
23.6%
|
|
| 9 | 31 |
14.1%
|
|
| 10 | Very effective | 29 |
13.2%
|
| 11 | Don't know | 152 | |
| Sysmiss | 49 |