| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 3 |
4.2%
|
|
| 3 | 4 |
5.6%
|
|
| 4 | 7 |
9.7%
|
|
| 5 | 11 |
15.3%
|
|
| 6 | 11 |
15.3%
|
|
| 7 | 15 |
20.8%
|
|
| 8 | 8 |
11.1%
|
|
| 9 | 7 |
9.7%
|
|
| 10 | Very effective | 6 |
8.3%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 94 |