| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 1 |
1.8%
|
|
| 4 | 4 |
7.3%
|
|
| 5 | 10 |
18.2%
|
|
| 6 | 9 |
16.4%
|
|
| 7 | 12 |
21.8%
|
|
| 8 | 9 |
16.4%
|
|
| 9 | 5 |
9.1%
|
|
| 10 | Very effective | 5 |
9.1%
|
| -99 | 3 | ||
| 11 | Don't know | 33 | |
| Sysmiss | 18 |