| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 5 |
1.1%
|
| 2 | 10 |
2.3%
|
|
| 3 | 8 |
1.8%
|
|
| 4 | 15 |
3.4%
|
|
| 5 | 30 |
6.9%
|
|
| 6 | 32 |
7.3%
|
|
| 7 | 51 |
11.7%
|
|
| 8 | 57 |
13%
|
|
| 9 | 40 |
9.2%
|
|
| 10 | Very effective | 88 |
20.1%
|
| 11 | Don't know | 101 |
23.1%
|
| Sysmiss | 130 |