| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 5 | 4 |
4.7%
|
|
| 6 | 7 |
8.1%
|
|
| 7 | 15 |
17.4%
|
|
| 8 | 33 |
38.4%
|
|
| 9 | 17 |
19.8%
|
|
| 10 | Very effective | 10 |
11.6%
|
| -99 | 5 | ||
| 11 | Don't know | 58 | |
| Sysmiss | 8 |