| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 33 |
16.3%
|
| 2 | 16 |
7.9%
|
|
| 3 | 15 |
7.4%
|
|
| 4 | 12 |
5.9%
|
|
| 5 | 16 |
7.9%
|
|
| 6 | 14 |
6.9%
|
|
| 7 | 18 |
8.9%
|
|
| 8 | 18 |
8.9%
|
|
| 9 | 19 |
9.4%
|
|
| 10 | Very effective | 41 |
20.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 140 |