| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 3 |
2.4%
|
| 2 | 11 |
8.7%
|
|
| 3 | 5 |
4%
|
|
| 4 | 13 |
10.3%
|
|
| 5 | 21 |
16.7%
|
|
| 6 | 29 |
23%
|
|
| 7 | 23 |
18.3%
|
|
| 8 | 13 |
10.3%
|
|
| 9 | 6 |
4.8%
|
|
| 10 | Very effective | 2 |
1.6%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 70 |