| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
1.6%
|
| 2 | 5 |
1.6%
|
|
| 3 | 9 |
2.9%
|
|
| 4 | 25 |
8%
|
|
| 5 | 28 |
8.9%
|
|
| 6 | 32 |
10.2%
|
|
| 7 | 35 |
11.2%
|
|
| 8 | 36 |
11.5%
|
|
| 9 | 24 |
7.7%
|
|
| 10 | Very effective | 14 |
4.5%
|
| 11 | Don't know | 100 |
31.9%
|
| Sysmiss | 55 |