| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 2 | 2 |
2.4%
|
|
| 3 | 1 |
1.2%
|
|
| 4 | 2 |
2.4%
|
|
| 5 | 6 |
7.1%
|
|
| 6 | 6 |
7.1%
|
|
| 7 | 14 |
16.5%
|
|
| 8 | 30 |
35.3%
|
|
| 9 | 17 |
20%
|
|
| 10 | Very effective | 7 |
8.2%
|
| 11 | Don't know | 0 |
0%
|
| Sysmiss | 53 |