| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 22 |
12%
|
| 2 | 5 |
2.7%
|
|
| 3 | 7 |
3.8%
|
|
| 4 | 8 |
4.3%
|
|
| 5 | 18 |
9.8%
|
|
| 6 | 25 |
13.6%
|
|
| 7 | 23 |
12.5%
|
|
| 8 | 23 |
12.5%
|
|
| 9 | 13 |
7.1%
|
|
| 10 | Very effective | 40 |
21.7%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 158 |