| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 11 |
9.2%
|
| 2 | 5 |
4.2%
|
|
| 3 | 7 |
5.8%
|
|
| 4 | 8 |
6.7%
|
|
| 5 | 34 |
28.3%
|
|
| 6 | 30 |
25%
|
|
| 7 | 11 |
9.2%
|
|
| 8 | 9 |
7.5%
|
|
| 9 | 1 |
0.8%
|
|
| 10 | Very effective | 4 |
3.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 33 |