| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 20 |
5.1%
|
| 2 | 24 |
6.1%
|
|
| 3 | 38 |
9.6%
|
|
| 4 | 57 |
14.4%
|
|
| 5 | 85 |
21.5%
|
|
| 6 | 50 |
12.7%
|
|
| 7 | 70 |
17.7%
|
|
| 8 | 33 |
8.4%
|
|
| 9 | 7 |
1.8%
|
|
| 10 | Very effective | 11 |
2.8%
|
| 11 | Don't know | 81 | |
| Sysmiss | 2 |