| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 4 |
1.3%
|
| 2 | 5 |
1.6%
|
|
| 3 | 12 |
3.9%
|
|
| 4 | 27 |
8.7%
|
|
| 5 | 28 |
9.1%
|
|
| 6 | 59 |
19.1%
|
|
| 7 | 72 |
23.3%
|
|
| 8 | 65 |
21%
|
|
| 9 | 24 |
7.8%
|
|
| 10 | Very effective | 13 |
4.2%
|
| 11 | Don't know | 43 | |
| Sysmiss | 14 |