| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
3.3%
|
| 2 | 3 |
4.9%
|
|
| 4 | 5 |
8.2%
|
|
| 5 | 12 |
19.7%
|
|
| 6 | 11 |
18%
|
|
| 7 | 13 |
21.3%
|
|
| 8 | 7 |
11.5%
|
|
| 9 | 6 |
9.8%
|
|
| 10 | Very effective | 2 |
3.3%
|
| -99 | 8 | ||
| 11 | Don't know | 65 | |
| Sysmiss | 25 |