| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 36 |
20.5%
|
| 2 | 19 |
10.8%
|
|
| 3 | 8 |
4.5%
|
|
| 4 | 13 |
7.4%
|
|
| 5 | 15 |
8.5%
|
|
| 6 | 14 |
8%
|
|
| 7 | 19 |
10.8%
|
|
| 8 | 10 |
5.7%
|
|
| 9 | 15 |
8.5%
|
|
| 10 | Very effective | 27 |
15.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 166 |