| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 4 | 2 |
2.3%
|
|
| 5 | 5 |
5.8%
|
|
| 6 | 12 |
14%
|
|
| 7 | 10 |
11.6%
|
|
| 8 | 33 |
38.4%
|
|
| 9 | 11 |
12.8%
|
|
| 10 | Very effective | 13 |
15.1%
|
| -99 | 6 | ||
| 11 | Don't know | 57 | |
| Sysmiss | 8 |