| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 10 |
6.1%
|
| 2 | 7 |
4.2%
|
|
| 3 | 11 |
6.7%
|
|
| 4 | 7 |
4.2%
|
|
| 5 | 22 |
13.3%
|
|
| 6 | 19 |
11.5%
|
|
| 7 | 24 |
14.5%
|
|
| 8 | 30 |
18.2%
|
|
| 9 | 22 |
13.3%
|
|
| 10 | Very effective | 13 |
7.9%
|
| -99 | 14 | ||
| 11 | Don't know | 50 | |
| Sysmiss | 25 |