| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 8 |
2.7%
|
| 2 | 9 |
3%
|
|
| 3 | 8 |
2.7%
|
|
| 4 | 19 |
6.4%
|
|
| 5 | 70 |
23.6%
|
|
| 6 | 36 |
12.1%
|
|
| 7 | 21 |
7.1%
|
|
| 8 | 23 |
7.7%
|
|
| 9 | 5 |
1.7%
|
|
| 10 | Very effective | 8 |
2.7%
|
| 11 | Don't know | 90 |
30.3%
|
| Sysmiss | 4 |