| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
2.1%
|
| 2 | 9 |
1.9%
|
|
| 3 | 8 |
1.7%
|
|
| 4 | 15 |
3.1%
|
|
| 5 | 39 |
8.1%
|
|
| 6 | 34 |
7.1%
|
|
| 7 | 43 |
9%
|
|
| 8 | 43 |
9%
|
|
| 9 | 33 |
6.9%
|
|
| 10 | Very effective | 103 |
21.5%
|
| 11 | Don't know | 25 |
5.2%
|
| 12 | 117 |
24.4%
|
|
| Sysmiss | 88 |