| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 2 |
2%
|
| 2 | 1 |
1%
|
|
| 4 | 4 |
4%
|
|
| 5 | 6 |
5.9%
|
|
| 6 | 12 |
11.9%
|
|
| 7 | 10 |
9.9%
|
|
| 8 | 33 |
32.7%
|
|
| 9 | 21 |
20.8%
|
|
| 10 | Very effective | 12 |
11.9%
|
| -99 | 17 | ||
| 11 | Don't know | 64 | |
| Sysmiss | 22 |